Police officers arrested 18 people at worker-led protests at Microsoft headquarters Wednesday as the tech company promises an “urgent” review of the Israeli military's use of its technology during the ongoing war in Gaza.

Protesters set up a “Liberated Zone” at Microsoft’s Redmond headquarters, escalating pressure on the company to end contracts with Israel.

Protesters started gathering Tuesday afternoon at a plaza at the center of a recently redeveloped portion of the company's main campus in Redmond.