ST. LOUIS (AP) — Protesters across the U.S. have walked off their jobs or away from classes in support of the Ferguson protesters.

Monday’s walkouts stretched from New York to San Francisco, and included Chicago and Washington, D.C.

At the University of Missouri-St. Louis, three dozen students rallied outside the library and walked out of class, some with their hands up in the gesture that has become a symbol of the movement.

The walkouts came a week after a St. Louis County prosecutor’s announcement that a grand jury had decided not to indict white Ferguson police officer Darren Wilson in the August shooting death of 18-year-old Michael Brown, who was unarmed and black. The case spawned sometimes violent protests, often with demands that Wilson face charges.

Wilson has resigned from the police force.