Tesla Inc has told workers it will temporarily stop some production at its car assembly plant in California, Bloomberg News reported on Thursday, citing a person familiar with the matter.

The report said workers on a Model 3 production line in Fremont were notified that their line would be down from Feb. 22 until March 7.

The reason for the halt was not clarified by the report, and Tesla could not be immediately reached for comment.

It was also unclear how much volume or revenue Tesla Inc would lose due to the production halt. The Fremont plant has an annual production capacity of 500,000 Model 3s and Model Ys combined.

Last month, Tesla announced that it might face a temporary impact from a global semiconductor shortage.

Several automakers, including General Motors Co, Volkswagen AG, and Ford Motor Co, are hit by the shortage of chips, forcing them to scale down production.