Stores in Colorado Springs, Fort Collins, Greeley and Longmont will hold strike-authorization votes tonight and tomorrow morning.

On Monday, workers at more Safeway stores went on strike, demanding better pay, benefits, and staffing levels. Union leaders told Denver7 the strike will continue to expand until a contract is reached.

Safeway employees across Colorado have been going on strike, one union after another. And Tuesday, the strikes reached Grand Junction.

On Tuesday, members of the UFCW Local 7 held a vote to authorize a strike for more stores. Colorado Springs meat and retail workers voted 99% in favor of striking, according to a social media post from the union. They will join the employees at the Fountain Safeway and one location in Pueblo, who began their picket lines over the weekend.

Pueblo and Pueblo West Safeway workers have joined a United Food and Commercial Workers Local 7 strike seeking better pay, staffing and benefits.