Canadian authorities announced Monday they have broken up an Al Qaeda-linked terror plot to attack a passenger train as it crossed over a bridge in the Toronto area.
The Royal Canadian Mounted Police said Monday that two suspects have been arrested on terrorism charges. Chiheb Esseghaier and Raed Jaser, who live in greater Montreal and Toronto -- were conspiring to carry out an Al Qaeda-supported attack against Via Rail, but posed no immediate threat to the public.
"It was definitely in the planning stage but not imminent," RCMP chief superintendent Jennifer Strachan told reporters at a news conference.
The six-month investigation, called “Project Smooth,”  was coordinated with the U.S. Department of Homeland Security and the FBI, CBC said. The Royal Canadian Mounted Police said in a statement the operation was coordinated by a multi-agency team comprised of the national police, Canadian Security Intelligence Services, the Canada Border Service Agency and other law enforcement and national security partners in Montreal and Toronto, Canada's two largest cities.
The plot is unrelated to the Boston Marathon attack, U.S. Justice Department sources said. 
Charges against the two men include conspiring to carry out an attack and murder people in association with a terrorist group. Police said the men are not Canadian citizens, but they would not comment on where they are originally from.
Sources tell Fox News that the suspects wanted to have an economic impact and make a big statement.
The suspects are expected in Canadian court for a bail hearing Tuesday.
Fox News' Mike Levine and The Associated Press contributed to this report.