A lockout at the Port of Montreal began Sunday night. The CEO of the Montreal Port Authority says if the dispute between dockworkers and the Maritime Employers' Association drags on, it will have disastrous consequences for the economy.

OTTAWA—The movement of cargo through Canada’s second-largest seaport halted late Sunday after dockworkers at the Port of Montreal rejected a revised pay offer from employers, heightening stresses on trade as talks aimed at reopening ports on the ...

The longshore workers rejected the deal by a margin of 99.7 per cent. The Maritime Employers Association (MEA) followed through Sunday night on a pledge to lock out 1,200 longshore workers after those workers voted by a huge margin to reject a “final and comprehensive” contract offer from management.