Politicians in Ontario are urging the federal government to take action in the wake of a shooting at an east-end Toronto street party that left two dead and 23 others wounded.

Ontario Attorney General John Gerretsen told CBC’s Power & Politics that the recent shooting in Scarborough demonstrates the need for a ban on handguns.

"The first thing we have to do is we have to ban handguns in Canada," Gerretsen said Wednesday, noting that the Ontario government has previously lobbied Ottawa on this point.

A forthcoming meeting involving provincial cabinet ministers and Toronto Mayor Rob Ford will address “what more we can do,” said Gerretsen.

Ford said he was "very upset" by the brazen shooting on Monday night and has decided to ask Prime Minister Stephen Harper to boost mandatory minimum sentences for those convicted of illegally possessing weapons.

"Three years for possession of a handgun? That’s nonsense. They should do some serious hard time," Ford said in an interview with Toronto television station CP24.

When asked if he was going to ask Harper to push for increased minimum sentences, Ford replied, "Absolutely."

"I want to see what's the most they can do. They can do, you know, really whatever they want. They have a majority government. And I'm going to put pressure on them because it’s affecting our city more than any other city in Canada."

Gerretsen said that tougher sentences are only part of the solution to the gun violence problem.

The mayor offered his condolences to the victims of the shooting. Ford also said that those convicted of gun crimes from Toronto shouldn't be allowed to return to the city.

"I want these people out of the city, and I’m not going to stop. Not 'Put them in jail, then come back and you can live in the city,'" he said.

"No. I want them out of the city. Go somewhere else, I don’t want them living in the city anymore."

Ford's comments come one day after Public Safety Minister Vic Toews publicly chided the country's court system for striking down mandatory minimum sentences for gun-related crime.

Earlier this month, an Ontario Court judge struck down the automatic three-year sentence for firearms trafficking, saying it was disproportionate. Justice Paul Bellefontaine said a crack dealer who offered to sell an undercover police officer a non-existent gun should not have to face the mandatory minimum sentence.

In February, another Ontario judge said sending a first-time offender to prison for three years for possessing a loaded gun amounted to "cruel and unusual punishment" and declared the minimum sentence unconstitutional.

Ford said he planned to ask McGuinty for more funding so he can hire more police officers to become part of the Toronto anti-violence intervention strategy (TAVIS) unit. The unit is tasked with engaging with communities and addressing the root causes of violence.

Grandfather pleads for witnesses

The grandfather of Shyanne Charles, the teen girl who died in the shooting on Monday, has pleaded for anyone with information to come forward as police continue to search for those involved. Police have not yet announced any arrests.

"No more hiding, no more secrecy. What you know, let it come forward so my granddaughter's death won't have to be in vain," Tyrone Charles said at a Tuesday evening vigil at the home where Shyanne Charles lived.

Charles said it was time to take a stand.

"Save other kids like her from the same gun violence," he said. "Us, parents in the community, we could do more."

The shooting, which occurred near the intersection of Morningside Avenue and Lawrence Avenue East around 10:40 p.m. Monday night, has shocked residents of the city.

Toronto police Chief Bill Blair said Wednesday that the city has made some progress over the last several years in combating violence through a combination of policing and investments in the community.

Violence 'touches all of us'

However, there are still people who are prepared to use weapons in an indiscriminate manner in "isolated" incidents, Blair said.

Those events, including the "unprecedented" shooting on Monday, can threaten citizens' sense of safety.

"When violence takes place in a public way, it touches all of us," he said.

Police officers are seeking out information from the public, including the more than 100 people who attended the party on Danzig Street, as they search for anyone responsible for the attack.

Investigators say they have received some co-operation from witnesses and are specifically asking for anyone who took photos or video of the shooting to come forward.

"There will be lots of time for us to reflect on what last night's violence means in the context of the safety of our entire city, and I think that kind of reflection will be important," Blair said Tuesday evening. "Right now, we are absolutely focused on solving this crime."

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  • Shyanne Charles, 14, was killed in the shooting on Scarborough's Danzig Street.

  • Police interview neighbours on Tuesday July 17, 2012 near the scene of a shooting on Danzig Street where 19 people were injured and 2 confirmed dead at an outdoor barbecue that took place on Monday July 16, 2012.

  • Neighbours watch on as police walk by on Tuesday July 17, 2012 near the scene of a shooting on Danzig Street where 19 people were injured and 2 confirmed dead at an outdoor barbecue that took place on Monday July 16, 2012 .

  • Mayor Rob Ford speaks to media after visiting the scene of Monday night's shooting on Danzig St. in Toronto on Tuesday July 17, 2012. Toronto police are calling for witnesses to come forward following a deadly shooting at an outdoor neighbourhood party that left two people dead and sent 21 others to hospital, including an infant, in what police are calling the worst incident of gun violence in the city's recent history.THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Mayor Rob Ford (right) visits the scene of Monday night's shooting on Danzig St. in Toronto on Tuesday July 17, 2012. Toronto police are calling for witnesses to come forward following a deadly shooting at an outdoor neighbourhood party that left two people dead and sent 21 others to hospital, including an infant, in what police are calling the worst incident of gun violence in the city's recent history.THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Shyanne Charles, 14, was killed in the shooting on Scarborough's Danzig Street.

  • Joshua Yasay, 23, was killed in the shooting.

  • Shyanne Charles, 14, was killed in the shooting on Scarborough's Danzig Street.

  • Police interview neighbors near the scene of a shooting in Toronto, on Tuesday, July 17, 2012. Two people are dead and 19 were injured as gunfire broke out late Monday night as more than 200 people attended an outdoor community barbecue. Police described the shootout, which involved multiple guns, as an "unprecedented" episode of violence. (AP Photo/The Canadian Press,Aaron Vincent Elkaim )

  • Toronto Police Chief Bill Blair arrives for a news conference on Monday night's fatal shooting at a street party in Scarborough, in Toronto, Tuesday, July 17, 2012. THE CANADIAN PRESS/Ian Willms

  • Police interview neighbors near the scene of a shooting in Toronto, on Tuesday, July 17, 2012. Two people are dead and 19 were injured as gunfire broke out late Monday night as more than 200 people attended an outdoor community barbecue. Police described the shootout, which involved multiple guns, as an "unprecedented" episode of violence. (AP Photo/The Canadian Press,Aaron Vincent Elkaim )

  • Shannon Longshaw;

  • Police stand on guard on Tuesday July 17, 2012 on Danzig Street near the scene of a shooting where 19 people were injured and 2 confirmed dead at an outdoor barbecue that took place on Monday July 16, 2012 . THE CANADIAN PRESS/Aaron Vincent Elkaim

  • A police officer places a marker on Danzig Street in Toronto on Tuesday, July 17, 2012 near the scene of Monday night's shooting. Toronto police are calling for witnesses to come forward following a deadly shooting at an outdoor neighbourhood party that left two people dead and sent 21 others to hospital, including an infant, in what police are calling the worst incident of gun violence in the city's recent history. THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Pedestrians look on near the scene of a shooting in Toronto early Tuesday, July 17, 2012, that left 19 people injured and two dead at a house party late Monday July 16. THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Toronto Police Chief Bill Blair speaks to the media in Toronto early Tuesday, July 17, 2012, near the scene of a shooting that left 19 people injured and two dead at a house party late Monday, July 16. THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Toronto Police Chief Bill Blair walks down Morningside Ave in Toronto early Tuesday, July 17, 2012, following a shooting that left 19 people injured and two dead at a house party late Monday, July 16. THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Police stand on guard on Morningside Ave. in Toronto early Tuesday, July 17, 2012, near the scene of a shooting where 19 people were injured and two dead at a house party late Monday, July 16. THE CANADIAN PRESS/Aaron Vincent Elkaim

  • Toronto Police Chief Bill Blair speaks to media in Toronto early Tuesday, July 17, 2012, near the scene of a shooting where 19 people were injured and two were left dead at a house party late Monday July 16. THE CANADIAN PRESS/Aaron Vincent Elkaim

  • A man is attended to on the scene and loaded onto a gurney for transport following a shooting that left 19 injured and two dead in Toronto late Monday, July 16, 2012. THE CANADIAN PRESS/Toronto Star - Rick Madonik

  • ETF officers stand guard following a shooting that left 19 injured and two dead in Toronto late Monday, July 16, 2012. THE CANADIAN PRESS/Toronto Star - Rick Madonik