Car maker General Motors is momentarily laying off around 1,200 workers at its final assembly plant in Oshawa, Canada due to a slowdown at U.S. plants while the Union Auto Workers are on strike, reported CNBC.

It is not clear for how long the employees will be terminated but according to the media reports the Canadian plants have to reduce their production of GM pickup trucks by half since they can’t get the components needed from the U.S. plants, which are currently shut down.

The car maker mentioned that roughly 1,200 employees who have been temporarily let go will receive layoff benefits under the company norms.

It can be recalled that roughly 48,000 United Auto Workers with the automaker went on strike earlier this week. The union and the automaker were not able to reach a deal by a Saturday night deadline, so UAW leaders called for the first national strike against GM since 2007.

After the strike was called, negotiations between GM and the union resumed on Monday morning and have been ongoing on a daily basis, but the sides have not been able to reach an agreement yet. The talks, according to officials, have been “progressing.”

The automaker’s decision to temporarily layoff workers in Canada shows that the strike is spreading to other units. If that continues and it impacts the automaker’s supply base, companies and workers outside GM could soon be impacted by the strike and laid off as well. A GM spokesman said the layoffs at this point are isolated and not impacting other operations. 

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