A man was killed and a police officer slashed with a knife Friday at Montreal's Bonaventure metro station, a public transit hub serving the Via Rail train station.

A tentative deal, reached Sunday night between Metro Transit and the Amalgamated Transit Union, could end the Halifax transit strike.

Striking Metro Transit workers in Halifax tried a new tactic in their contract dispute on Monday, slowing snowplows in the Halifax Regional Municipality.

Montreal police are investigating after bags of bricks were thrown onto the tracks and emergency brakes were pulled in several metro stations this morning.

Montreal police say they have four people in custody following Thursday's multiple smoke bombing attacks that shut down the city's metro system.