Amazon warehouse workers in San Francisco and six other facilities around the nation went out on strike Thursday to try to force the e-commerce giant to negotiate with them. As part of a nationwide labor action organized by the Teamsters union — which the Teamsters called the largest-ever against Amazon — about 40 people picketed outside of the company’s facility at 749 Toland St.

Coordinated strikes ahead of Christmas in a handful of cities including San Francisco and New York see the Teamsters challenge the nation’s second-largest private employer.