Police in Canada are investigating the involvement of two young men in an attack on a natural gas plant in Algeria.
The men, who died when Algerian troops counter-attacked, were part of an al-Qaeda-linked group that held dozens of hostages at the facility in January.
The incident has led to a debate on what the country calls "homegrown fighters."
Al Jazeera's Daniel Lak reports from London, Ontario.
Source: Al Jazeera