Hundreds of Chicago fast food and retails workers walked off the job Wednesday morning in a one-day strike to demand wage hikes and union rights. The walk-out is part of an accelerating trend of labor actions by low-wage, non-union workers at some of the country’s largest corporate chains stores and restaurants.

The Fight for 15 campaign, named for its target wage hike, has been organizing workers for months to pull off today’s strike. Organizers expect employees of downtown Chicago chains including McDonald’s, Subway, Dunkin Donuts, Sears and Victoria’s Secret to join the action.

The Chicago strike comes on the heels the recent Black Friday Walmart worker actions and several similar walk-outs by New York City fast food workers in November and again earlier this month. Fast food and retail workers are often paid the minimum wage—$8.25 in Illinois—and many say their employers refuse to schedule them for enough hours.