The walkout at one of Canada’s biggest seaports comes as workers at more than half of U.S. ports prepare to strike.

The strike by the International Longshoremen's Association (ILA) union has blocked goods from food to automobile shipments across dozens of ports from Maine to Texas, a disruption that analysts warn will cost the economy billions of dollars a day.

Port of Montreal dockworkers are set to walk off the job Monday morning as tensions in a labor dispute ratchet up, threatening to freeze cargo at two terminals at one of Canada’s busiest seaports.

President Joe Biden and his administration have signaled to both sides in the high-stakes dockworkers strike that they need to work things out “fairly and quickly,” the White House said in a statement Tuesday.

The union representing U.S. dockworkers signaled that 45,000 members will walk off the job at midnight, kicking off a massive strike likely to shut down ports across the East and Gulf coasts

If you haven’t been paying attention to what’s been going down at the border, it’s high time you should—specifically the parts of the U.S. that border the Atlantic Ocean and the Gulf of Mexico. Tuesday,

The shutdown could take a significant toll on local companies and retailers that depend on the port for access to international markets.