Canada has a secretive program that grants entry visas to "high-profile" foreign nationals who would otherwise be inadmissible due to security concerns.

A look at some key events from more than two years of turmoil and transition in Egypt.

Egypt's Muslim Brotherhood is ramping up calls for nationwide protests, urging people to take to the streets against the new military-backed government.

Two of Egypt's former militant groups are offering an initiative to halt the country's political violence, in which supporters of the ousted Islamist president will stop street protests if the military-backed government stops its crackdown on them, the groups' leaders said Monday.

The father of a doctor and humanitarian from Ontario, in Egyptian police custody since last Friday, said his son is someone who “makes all Canadians proud.”

Egyptian security officials and state television say the supreme leader of the Muslim Brotherhood has been detained.

Egypt was only intended to be a stopover for John Greyson, a Toronto filmmaker and York University professor, and Tarek Loubani, an emergency room physician and assistant professor at Western University, in London, Ont.

Jailed ex-Egyptian President Hosni Mubarak could be released later this week, judicial officials said Monday in the wake of an ambush by suspected Islamic militants that left 25 off-duty policemen dead.

Egypt's capital descended into chaos Friday as vigilantes at neighborhood checkpoints battled Muslim Brotherhood-led protesters denouncing the ouster of President Mohammed Morsi and a deadly crackdown. The fiercest street clashes Cairo has seen in more than two years of turmoil left at least 82 people dead, including 10 policemen.

Mixed in with the chaos and violence unfolding in Egypt over the past few days, the country’s Coptic Christians say they have come under attack from supporters of the Muslim Brotherhood.