Unifor members on strike at General Motors plants in Canada (NYSE:GM)

Workers at three General Motors (NYSE:GM) facilities in Canada began strike action early Tuesday after failing to reach agreement with the automaker, news agency Associated Press reported.

Unifor, which represents more than 4,200 workers at the plants, had warned they would begin a strike if no agreement was struck with GM (GM) by midnight local time, according to the report.

Last month, Unifor members had voted to approve a three-year contract with Ford Motor (NYSE:F), while the automaker remains in negotiations with U.S. union workers over pay and benefits.

“This strike is about General Motors stubbornly refusing to meet the pattern agreement… The members from Unifor Locals 222, 199 and 636 will remain on strike until the pattern is met,” Unifor President Lana Payne said.

The strike includes autoworkers at the Oshawa Assembly Complex and CCA Stamped Products, St. Catharines Powertrain Plant and Woodstock Parts Distribution Centre.

Meanwhile Chrysler-parent Stellantis (NYSE:STLA) on Monday laid off 570 workers and General Motors (GM) announced cuts of nearly 200 employee due to the United Auto Workers strike (UAW) in the U.S, Reuters News reported.

Stellantis (STLA), which had a total of 640 layoffs said the job cuts were due to storage constraints. Ford has also laid off a total 1,865 workers since the strike began on September 15.