NEW : Canadian police have no firm information on the suspects ' whereabouts . The two men are accused of role in al Qaeda plot . They are said to have departed for Pakistan in 2006 . Police say their current whereabouts are unknown .
NEW : Canadian authorities have no firm leads on the suspects ' whereabouts . The two Canadians are accused of role in al Qaeda plot . They are said to have departed for Pakistan in 2007 . Police say their current whereabouts are unknown .