On Sunday, some Safeway employees formed picket lines to fight what they say are unfair labor practices. Strikes happened at stores in Fountain, Pueblo, Estes Park and a distribution center in Denver.

Safeway workers are striking at the same time as contract negotiations between workers and King Soopers are coming to a head. The union is negotiating with King Soopers and parent Kroger after a strike in February. That strike lasted almost two weeks before a deal was reached to pause the labor action for 100 days. That pause expired last month.

They made good on that promise on June 15, joining the first cities to go on strike, including Fountain, Estes Park, and a Denver distribution center. Later in the day, workers from the Littleton Safeway also walked off the job,

The union representing Safeway store employees in Colorado has given the required 72-hour notice that the strike is set to begin one minute before midnight on Sunday.