LOS ANGELES − Amazon workers in Southern California represented by the Teamsters union authorized a strike at four warehouses, days after strikes were authorized in New York and Illinois.

The strike authorizations, announced in a Tuesday press release, cover Teamsters workers at warehouses in the City of Industry, San Bernandino, Victorville and Palmdale. The authorizations allow for strikes to take place but does not guarantee they will happen.

Teamsters said that Amazon had failed to meet a Dec. 15 deadline to come to the negotiating table and threatened "large-scale labor actions at a critical time of year."

"We know how important our air hub is to Amazon’s operations,” said Tobias Cheng, a worker at the KSBD air hub in San Bernardino said in the press release. "If Amazon forces a strike, it might have a serious impact on customers throughout the region and beyond."

Amazon has repeatedly refused to recognize the union and said in a statement to USA TODAY that the strike is not a legitimate representation of its workers.

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"For more than a year now, the Teamsters have continued to intentionally mislead the public – claiming that they represent ‘thousands of Amazon employees and drivers’," Eileen Hands, a company spokesperson said. "They don’t, and this is another attempt to push a false narrative."

Amazon strikes authorized in New York and Illinois

Strikes have also been authorized at the DIL7 Amazon delivery station in Skokie, Illinois and at the JFK8 and DBK4 facilities in New York City.

The threatened strikes would hit the online-retail monolith in the middle of the crucial holiday season. Representatives of the company told CNN Tuesday that the potential strikes would not interrupt holiday business.

The company did not immediately respond to follow up questions about the potential impact of a strike.

"We aren’t asking for much," James Saccardo, a worker at the JFK8 facility, said in the press release announcing the New York authorizations. "We just want what everyone else in America wants —to do our jobs and get paid enough to take care of ourselves and our families. And Amazon isn’t letting us do that."

Workers at 10 facilities across the country have organized under the Teamsters, according to the union.

This story has been updated with new information.