The Teamsters haven’t formally indicated when the actions will end, but union officials said the walkout would continue “as long as it takes.”

Amazon workers went on strike over pay outside a warehouse in New York. Thousands of Amazon employees claiming they are underpaid downed tools outside the depot in Maspeth, Queens, on December 20, demanding better pay and improved working conditions.

Warehouse workers in cities including New York, Atlanta and San Francisco were taking part in what Teamsters officials called the largest-ever strike against Amazon.