OTTAWA - The federal government expressed disappointment Tuesday that two Canadians being detained in Cairo were still being held — and are likely to remain behind bars for another two weeks.

Egyptian news sources say a judge has ordered the two Canadians, along with seven other foreign nationals, held for 15 days pending an investigation by prosecutors.

Toronto filmmaker John Greyson and London, Ont., doctor Tarek Loubani were arrested by Egyptian police Friday when they were in Cairo on their way to Gaza.

“We were disappointed to learn today that Dr. Loubani and Mr. Greyson will continue to be held in detention," minister of state for foreign affairs Lynne Yelich said in a statement Tuesday after she and Foreign Affairs Minister John Baird spoke with Egypt's ambassador to Canada.

“The government of Canada is deeply disappointed by this decision as there continues to be a lack of evidence."

Family members have hired a Cairo lawyer to represent the two men, although it remained unclear whether the lawyer would be able to aid in securing an earlier release.

The ONA news agency says Greyson and Loubani are among dozens accused of being involved with the Muslim Brotherhood, and of trying to storm a police station in Cairo's Ramses Square.

Justin Podur, a friend of the two detained Canadians, called the allegations "far-fetched."

He noted that four of the foreign nationals, all from Ireland, were arrested on Saturday, Aug. 17, when police raided the al-Fateh mosque.

"Tarek and John were already in custody at the time," Podur said in a statement.

The Al-Youm Al-Sabea newspaper says the Canadians are being held along with the four Irish nationals, two Syrians and one person from Turkey.

Citing a prosecutor's release, the newspaper says the nine face a range of serious accusations, including belonging to an armed gang, threatening security and social peace, disabling public transport and communications and possession of firearms, ammunition and explosives.

The Turkish national, reportedly photojournalist Metin Turan with the Turkish Radio and Television Corporation, was detained on Aug. 14, said Podur, although Reporters Without Borders said he was detained Aug. 16 while covering the al-Fateh raid.

The two Canadians arrived in Cairo on Aug. 15, said Podur, and were arrested a short time later.

"The prosecution's press release is a clear attempt to put a group of foreigners arrested at different times and places into a single group to create a far-fetched story about foreigners to justify ongoing imprisonment," he said.

"No allegations against John and Tarek have been relayed through consular officials or their Egyptian counsel. We continue to demand nothing short of their immediate release."

The Harper government says it is doing everything it can to get the men released and to learn more about the charges that they face.

"The Egyptian ambassador has committed to press for a timely and positive resolution to this matter," said Yelich. "Canada will continue to engage with the highest levels until this matter is resolved."

Prime Minister Stephen Harper said Monday he was "extremely concerned" about the safety of the two Canadians.

The Irish Times reported Tuesday that the Irish embassy in Cairo was granted consular access to four siblings who were among those detained after security forces stormed the al-Fateh mosque, which became the focus of the latest episode in a bloody showdown between Egypt’s military-installed government and the Muslim Brotherhood.

The four Irish nationals had reportedly taken refuge in the mosque after taking part in demonstrations against the ouster of Egyptian President Mohamed Morsi.

However Yelich said it appeared the Canadians were simply "two people ... in the wrong place at the wrong time."

About 900 people have been killed, including 100 police and soldiers, after authorities broke up Muslim Brotherhood protest camps in Cairo almost a week ago.

Also on HuffPost:

Loading Slideshow...
  • Egyptian army soldiers take their positions on top and next to their armored vehicles while guarding an entrance to Tahrir square, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian government employees clean up outside the Rabaah al-Adawiya mosque, in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian army soldiers take their positions on top and next to their armored vehicles while guarding an entrance to Tahrir square, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Supporters of ousted Egyptian President Mohammed Morsi, one holding a newspaper with images from Wednesday's crackdown, march towards downtown Cairo from the Mohandeseen district of Cairo, Egypt, Friday, Aug, 16, 2013. (AP Photo/Thomas Hartwell)

  • An Egyptian man collects and removes items from what is left of burned cars outside the Rabaah al-Adawiya mosque, in the center of the largest protest camp that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptians collect and remove items from what is left of damaged tents outside the Rabaah al-Adawiya mosque, where supporters of Egypt's ousted President Mohammed Morsi had a protest camp in Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • A trampled poster of Egypt's ousted President Mohammed Morsi is seen on the ground outside the Rabaah al-Adawiya mosque, where supporters of Morsi had a protest camp in Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Supporters of ousted Egyptian President Mohammed Morsi cross the Nile as they march towards downtown Cairo from the Mohandeseen neighborhood of Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Thomas Hartwell)

  • Egyptian Army soldiers take their positions on top of their armored vehicles while guarding an entrance to Tahrir Square, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • An Egyptian collects items from what is left of damaged tents outside the Rabaah al-Adawiya mosque, where supporters of Egypt's ousted President Mohammed Morsi had a protest camp in Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Abandoned shoes and a tea glass, belonging to supporters of ousted Egyptian President Mohammed Morsi, remain on a wall outside the Rabaah al-Adawiya mosque, in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian army soldiers take positions on top of their armored vehicles while guarding a street that leads to Rabaah al-Adawiya mosque, at the site of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian Army soldiers stand guard outside the Rabaah al-Adawiya mosque, in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian government employees clean up outside the Rabaah al-Adawiya mosque, at the site of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Supporters of Egypt's ousted President Mohammed Morsi carry coffins, covered with national flags, of their colleagues who were killed during Wednesday' clashes in Amr Ibn Al-As mosque before a funeral prayers in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Amr Nabil)

  • An Egyptian Army soldier takes his position on top of an armored vehicle while guarding an entrance to Tahrir Square, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • An Egyptian walks in front of an army armored vehicle that guards an entrance of Tahrir Square, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • An Egyptian man walks through debris from what is left of burned vehicles outside the Rabaah al-Adawiya mosque, where supporters of Egypt's ousted President Mohammed Morsi had a protest camp, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Supporters of ousted Egyptian President Mohammed Morsi, one holding a picture of Morsi, march towards downtown Cairo from the Mohandeseen neighborhood of Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Thomas Hartwell)

  • A poster left by supporters of ousted Egyptian President Mohammed Morsi remains outside Rabaah al-Adawiya mosque, in the center of the largest protest camp of Morsi supporters that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian government employees clean up outside the Rabaah al-Adawiya mosque in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the Nasr City district of Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian government employees clean up as members of the Egyptians Army patrol among the smoldering remains of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Egyptian army soldiers take their positions on top and next to their armored vehicles while guarding an entrance to Tahrir square, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Supporters of ousted Egyptian President Mohammed Morsi, cross the Nile as they march towards downtown Cairo from the Mohandeseen neighborhood of Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Thomas Hartwell)

  • Egyptian Army soldiers stand guard outside the Rabaah al-Adawiya mosque, background, in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • A supporter of ousted Egyptian President Mohammed Morsi holding an ordinance, march towards downtown Cairo from the Mohandeseen district of Cairo, Egypt, Friday, Aug, 16, 2013. (AP Photo/Thomas Hartwell)

  • Supporters of ousted Egyptian President Mohammed Morsi march towards downtown Cairo from the Mohandeseen neighborhood of Cairo, Egypt, Friday, Aug, 16, 2013. (AP Photo/Thomas Hartwell)

  • Supporters of ousted Egyptian President Mohammed Morsi, one holding a picture of Morsi, cross the Nile as they march towards downtown Cairo from the Mohandeseen neighborhood of Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Thomas Hartwell)

  • Egyptian Army soldiers stand guard outside the Rabaah al-Adawiya mosque, in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces, in the district of Nasr City, Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Hassan Ammar)

  • Supporters of Egypt's ousted President Mohammed Morsi surround a coffin, covered with national flags, of their colleague who was killed during Wednesday' clashes in Amr Ibn Al-As mosque before a funeral prayers in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Amr Nabil)

  • Supporters of Egypt's ousted President Mohammed Morsi throw stones at a gasoline station that belongs to the Egyptian Army service project, in Cairo, Egypt, Friday, Aug. 16, 2013. (AP Photo/Amr Nabil)

  • Supporters of ousted Egyptian President Mohammed Morsi run from Egyptian security forces firing towards them during clashes in Cairo's Nasr City district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Manu Brabo)

  • Egyptian Muslim Brotherhood supporters run from police in a street leading to Rabaa al-Adawiya protest camp in Cairo on August 14, 2013.

  • Egyptian Muslim Brotherhood supporters run from police in a street leading to Rabaa al-Adawiya protest camp in Cairo on August 14, 2013.

  • Egyptian riot police are seen in a street leading to a camp of supporters of Egypt's ousted president in Cairo's Rabaa al-Adawiya as they try to disperse them on August 14, 2013.

  • Supporters of Egypt's ousted president Mohamed Morsi and members of the Muslim Brotherhood run from tear gas smoke shot by police to disperse a pro-Morsi camp, on August 14, 2013 in Cairo.

  • Supporters of Egypt's ousted president Mohamed Morsi and members of the Muslim Brotherhood run from tear gas smoke shot by police to disperse a pro-Morsi camp, on August 14, 2013 in Cairo.

  • Egyptian Muslim Brotherhood supporters run from tear gas fired by Egyptian police as they try to disperse supporters of Egypt's ousted president Mohamed Morsi in a street leading to the Rabaa al-Adawiya protest camp in Cairo on August 14, 2013.

  • Egyptians help a woman suffering from tear gas exposure after canisters were fired by Egyptian police as they try to disperse a pro-Morsi camp in a street leading to Rabaa al-Adawiya in Cairo on August 14, 2013.

  • A supporter of ousted Egyptian President Mohammed Morsi reacts during clashes with Egyptian security forces in Rabaah Al-Adawiya in Cairo's Nasr City district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Manu Brabo)

  • An Egyptian security force checks his weapon as they clear a sit-in camp set up by supporters of ousted Islamist President Mohammed Morsi near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • Egyptian security forces takes a break as they clear a sit-in camp set up by supporters of ousted Islamist President Mohammed Morsi near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • Supporters of ousted Islamist President Mohammed Morsi walk through their sit-in camp as Egyptian security forces clear the sit-in camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • Supporters of ousted Egyptian President Mohammed Morsi take cover from Egyptian security forces fire during clashes in Rabaah Al-Adawiya in Cairo's Nasr City district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Manu Brabo)

  • Egyptian security forces detain supporters of ousted Islamist President Mohammed Morsi as they clear a sit-in camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • Supporters of ousted Islamist President Mohammed Morsi come out of their makeshift hut at their sit-in camp as Egyptian security forces clear the camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • A supporter of ousted Islamist President Mohammed Morsi runs to avoid smoke and tear gas as Egyptian security forces clear a sit-in camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • A man tends a supporter of ousted Islamist President Mohammed Morsi as Egyptian security forces clear a sit-in camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • Egyptian security forces and a man carry a man as security forces clear a sit-in camp set up by supporters of ousted Islamist President Mohammed Morsi near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • An Egyptian security force escorts a supporter of ousted Islamist President Mohammed Morsi as security forces clear a sit-in camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)

  • A supporter of ousted Islamist President Mohammed Morsi raises his arm as Egyptian security forces detain him at a sit-in camp set up near Cairo University in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. (AP Photo/Hussein Tallal)