Canadian police and intelligence agencies will announce later today they have thwarted a plot to carry out a major terrorist attack, arresting two suspects in Montreal and Toronto, CBC News has learned.
Highly placed sources tell CBC News the alleged plotters have been under surveillance for more than a year in Quebec and southern Ontario.
Police have made a number of arrests in southern Ontario and Quebec following a joint operation between Canadian and U.S. authorities. (CBC)The investigation was part of a cross-border operation involving Canadian law enforcement agencies, the FBI and the U.S. Department of Homeland Security.