Some workers at a Seattle McDonald's stage strike for higher wages

McDonald's workers hold surprise strike on Seattle's First Hill Wednesday night. (Photo provided by Anne Heavey for Working Washington)

SEATTLE -- Some workers at the McDonald's on Seattle's First Hill walked off the job Wednesday night and set up a strike line on Madison Avenue -- hours before a national fast-food workers' strike planned for Thursday.

The workers are backing a push for big corporations to pay a minimum wage of $15 an hour.