CBC News has learned that a suspicious package found Tuesday at Department of National Defence headquarters in downtown Ottawa contained no explosive material of any kind, and was never a threat to the public.

Ottawa Police said initial X-rays of the package showed what appeared to be wires, batteries and a dense material that could have been components for an improvised explosive device.

But sources close to the investigation say that when police destroyed the package to disable its potentially dangerous contents, they found no explosives or bomb-like devices.

RCMP are still investigating the case to determine who sent the mysterious package to National Defence and why.

It's unclear what exactly was in the package, but the source said it did not appear to have been left by accident.

"This wasn't someone's iPod, headphones and a sandwich that fell off someone's bike going past DND," said one source familiar with the probe.

The police response at 101 Colonel By Dr. at about 3:15 ET Tuesday afternoon forced the shutdown of Mackenzie King Bridge heading into the rush hour, causing major traffic disruptions in downtown Ottawa.

The north tower of the building was evacuated not long after the package was found at the north entrance.

A chemical, biological, radiological, nuclear and explosives team (composed of Ottawa police and RCMP) attended the scene, along with military police.

X-ray scans reveal possible explosives, power source, wires

A robot was used to remove the package from the building and X-ray it.

The scans revealed dense material that could have been explosives, according to Ottawa police Insp. Michael Maloney, as well as something that looked like it could have been a power source.

The scans also showed wires that could have connected the other materials.

"From what they ascertained off of the X-ray, they determined that there were components that were consistent with what you would require for an improvised explosive device," he said Wednesday morning.

"That doesn't mean that there were actual explosives, but there were components that were consistent with what is required to make a bomb."

Water blasts used on package

Police used a high-velocity water cannon to "disrupt" the package for further investigation, Maloney said. When that failed, police used what's called a water bottle charge — which contains a small amount of explosive — to blast the package and make it safe.

No one was hurt, and Maloney said there was never a threat to public safety.

A joint investigation by Ottawa police, RCMP and the Department of National Defence is ongoing.

Defence Minister Peter MacKay said he's working closely with law enforcement to learn more about the incident.

"I don't want to get into speculation until we get a full picture on what this package was and what was behind it," he told reporters Wednesday.

"I can't say enough about the reaction time of members of the Canadian Forces and the Ottawa city police who we worked very closely with. The building was evacuated, precautions were taken as they would be in all cases, and the item, the package, was removed and detonated."

Public Safety Minister Vic Toews said Canada's security agencies are "very vigilant" in trying to find possible dangers.

Also on HuffPost:

Loading Slideshow...
  • Boston Marathon Explosion

    BOSTON - APRIL 15: Police officers with their guns drawn hear the second explosion down the street. The first explosion knocked down a runner at the finish line of the 117th Boston Marathon. (Photo by John Tlumacki/The Boston Globe via Getty Images)

  • Boston Marathon Explosion

    A woman kneels and prays at the scene of the first explosion on Boylston Street near the finish line of the 117th Boston Marathon on April 15, 2013. (John Tlumacki / The Boston Globe / Getty Images)

  • Boston Marathon Explosion

    The marathon finish line bridge is seen on Boylston Street on April 16, 2013 in Boston, Massachusetts. on April 16, 2013 in Boston, Massachusetts. Security is especially tight in the city of Boston after two explosions went off near the finish of the Marathon, killing three people and injuring at least 141 others. (Darren McCollester / Getty Images)

  • Boston Marathon Explosion

    In this photo provided by The Daily Free Press and Kenshin Okubo, people react to an explosion at the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (Kenshin Okubo / The Daily Free Press / AP)

  • Boston Marathon Explosion

    Newspapers are on sale at a stand on Newbury Street on April 16, 2013 in Boston, Massachusetts. Security is especially tight in the city of Boston after two explosions went off near the finish of the Marathon, killing three people and injuring at least 141 others. Darren McCollester / Getty Images)

  • Boston Marathon Explosion

    A runner reacts near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Alex Trautwig / Getty Images)

  • Boston Marathon Explosion

    Officials react as the first explosion goes off on Boylston Street near the finish line of the 117th Boston Marathon on April 15, 2013. (John Tlumacki / The Boston Globe / Getty Images)

  • Boston Marathon Bombings

  • Boston Marathon Explosion

    Medical workers aid injured people at the finish line of the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/Charles Krupa)

  • Boston Marathon Explosion

    Boston Police look at blown out windows at the scene of the first explosion on Boylston Street near the finish line of the Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)

  • Boston Marathon Explosion

    Unclaimed finish line bags are viewed near the scene of a twin bombing at the Boston Marathon, on April 16, 2013 in Boston, Massachusetts. Three people are confirmed dead and at least 141 injured after the explosions went off near the finish line of the marathon yesterday. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Spencer Platt / Getty Images)

  • Boston Marathon Explosion

  • Boston Marathon Explosion

    A heavily armed Boston police officer (R) and a National Guard soldier (L) stands guard in front of the Taj Hotel April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. A massive probe was underway Tuesday after two bombs struck the Boston Marathon, killing at least three and wounding more than 100. Monday's blasts near the finishing line raised fears of a terrorist attack more than a decade after nearly 3,000 people were killed in suicide airliner strikes on New York, Washington and Pennsylvania on September 11, 2001. US President Barack Obama went on national television to warn against "jumping to conclusions" but a senior White House official, speaking on condition of anonymity, said such an attack was "clearly an act of terror." (Stan Honda / AFP / Getty Images)

  • Boston Marathon Explosion

    In this image from video provided by WBZ TV, spectators and runners run from what was described as twin explosions that shook the finish line of the Boston Marathon, Monday, April 15, 2013, in Boston. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/WBZTV) MANDATORY CREDIT

  • Boston Marathon Explosion

    Police officers with their guns drawn hear the second explosion down the street. The first explosion knocked down a runner at the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)

  • Boston Marathon Explosion

    BOSTON - APRIL 15: Two officials run away from the first explosion, right, on Boylston Street at the 177th Boston Marathon, April 15, 2013. (Photo by John Tlumacki/The Boston Globe via Getty Images)

  • Boston Marathon Bombings

    Karen Kaye, right, communications and community relations director for Big Peach Running Co., embraces Reginald Bohannon, of Atlanta, before the start of an organized moment of silence and memorial run to show solidarity with victims of the Boston Marathon bombing, Tuesday, April 16, 2013, in Atlanta. The explosions Monday afternoon killed at least three people and injured more than 140. (AP Photo/David Goldman)

  • Boston Marathon Explosion

  • Boston Marathon Explosion

    Carlos Arredondo, who was at the finish line of the 117th Boston Marathon when two explosives detonated, leaves the scene on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 28 injured after at least two explosions went off near the finish line to the marathon. (Darren McCollester / Getty Images)

  • Boston Marathon Explosion

    Emergency workers aid injured people at the finish line of the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. (AP Photo/Charles Krupa)

  • Boston Marathon Explosion

    A Boston police officer clears Boylston Street following an explosion at the finish line of the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria at the finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/Charles Krupa)

  • Boston Marathon Bombings

    One of the blast sites on Boylston Street near the finish line of the 2013 Boston Marathon is investigated by two people in protective suits in the wake of two blasts in Boston Monday, April 15, 2013. (AP Photo/Elise Amendola)

  • Boston Marathon Explosion

    There was smoke and panic in the street as emergency personnel responded to the scene after two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (David L. Ryan / The Boston Globe / Getty Images)

  • Boston Marathon Explosion

    Karen Kaye, right, communications and community relations director for Big Peach Running Co., embraces Reginald Bohannon, of Atlanta, before the start of an organized moment of silence and memorial run to show solidarity with victims of the Boston Marathon bombing, Tuesday, April 16, 2013, in Atlanta. The explosions Monday afternoon killed at least three people and injured more than 140. (David Goldman / AP)

  • Boston Marathon Explosion

    BOSTON - APRIL 15: Emergency personnel respond to the scene after two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (Photo by David L. Ryan/The Boston Globe via Getty Images)

  • Boston Marathon Explosion

    BOSTON - APRIL 15: Two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (Photo by David L. Ryan/The Boston Globe via Getty Images)

  • Boston Marathon Explosion

    Medical workers wheel the injured across the finish line during the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/Charles Krupa)

  • Boston Marathon Explosion

    Medical workers aid injured people at the finish line of the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. (AP Photo/Charles Krupa)

  • Boston Marathon Explosion

    A second explosion goes off (rear) as a runner was blown to the ground by the first explosion near the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)

  • Boston Marathon Explosion

    First responders rush to where two explosions occurred along the final stretch of the Boston Marathon on Boylston Street in Boston, Massachusetts, U.S., on Monday, April 15, 2013. Two powerful explosions rocked the finish line area of the Boston Marathon near Copley Square and police said many people were injured. (Kelvin Ma / Bloomberg / Getty Images)

  • Boston Marathon Explosion

    First responders rush to where two explosions occurred along the final stretch of the Boston Marathon on Boylston Street in Boston, Massachusetts, U.S., on Monday, April 15, 2013. Two powerful explosions rocked the finish line area of the Boston Marathon near Copley Square and police said many people were injured. (Kelvin Ma / Bloomberg / Getty Images)

  • Boston Marathon Bombings

    Firefighters tend to a man following an explosion at the finish line of the Boston Marathon in Boston, Monday, April 15, 2013. Two bombs exploded at the Boston Marathon finish line Monday killing at least two people injuring dozens. (AP Photo/Michael Dwyer)

  • Boston Marathon Explosion

  • Boston Marathon Explosion

    Runners and spectators flee from the scene where two explosions occurred along the final stretch of the Boston Marathon on Boylston Street in Boston, Massachusetts, U.S., on Monday, April 15, 2013. Two powerful explosions rocked the finish line area of the Boston Marathon near Copley Square and police said many people were injured. (Kelvin Ma / Bloomberg / Getty Images)

  • Boston Marathon Explosion

    First responders tend to the wounded where two explosions occurred along the final stretch of the Boston Marathon on Boylston Street in Boston, Massachusetts, U.S., on Monday, April 15, 2013. Two powerful explosions rocked the finish line area of the Boston Marathon near Copley Square and police said many people were injured. (Kelvin Ma / Bloomberg / Getty Images)

  • Boston Marathon Explosion

    A runner embraces another woman near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Alex Trautwig / Getty Images)

  • Boston Marathon Explosion

    Massachusetts State Police guard an area near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Alex Trautwig / Getty Images)

  • Boston Marathon Explosion

    Police and runners stand near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 28 injured after at least two explosions went off near the finish line to the marathon. (PAlex Trautwig / Getty Images)

  • Boston Marathon Explosion

    A woman looks at the blood on her hands as she is loaded into an ambulance after being injured after two bombs exploded on the marathon route on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Jim Rogash / Getty Images)

  • Boston Marathon Explosion

    In this photo provided by The Daily Free Press and Kenshin Okubo, people assist an injured after an explosion at the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (Kenshin Okubo / The Daily Free Press / AP)

  • Boston Marathon Explosion

    In this photo provided by The Daily Free Press and Kenshin Okubo, people help an injured person after an explosion at the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (Kenshin Okubo / The Daily Free Press / AP)

  • Boston Marathon Bombings

  • Boston Marathon Bombings

    Investigators shine flashlights at one of the blast sites on Boylston Street near the finish line of the 2013 Boston Marathon in the wake of two blasts in Boston Monday, April 15, 2013. (AP Photo/Elise Amendola)

  • Boston Marathon Explosion

    In this handout provided by the White House, U.S. President Barack Obama (L) talks on the phone with FBI Director Robert Mueller to receive an update on the explosions that occurred in Boston, in the Oval Office of the White House, April 15, 2013 in Washinton, DC. Seated with the President are Lisa Monaco, Assistant to the President for Homeland Security and Counterterrorism, and Chief of Staff Denis McDonough. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Pete Souza / The White House / Getty Images)

  • Boston Marathon Explosion

    Beacon Street near Kenmore Square remains empty for the use of emergency vehicles after two explosive devices detonated at the finish line of the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Alex Trautwig / Getty Images)

  • Boston Marathon Bombings

    Boston police officers keep a perimeter secure in Boston's Copley Square, Tuesday, April 16, 2013 as an investigation continues into the bomb blasts at the finish area of the Boston Marathon which killed 3 and injured over 140 people. (AP Photo/Elise Amendola)

  • Boston Marathon Bombing

  • Boston Marathon Bombings

  • Boston Marathon Bombings

    In this image from video provided by Ryan Hoyme, the second explosion can be seen in the distance as smoke from the first explosion surrounds spectators exiting the stands during the Boston Marathon in Boston, Monday, April 15, 2013. (AP Photo/Ryan Hoyme)

  • Boston Marathon Bombings

  • Boston Marathon Bombings