Picket lines are continuing to form at four Safeway grocery stores across the state, including two here in southern Colorado. Yesterday, workers were seen picketing in front of a distribution center in Denver.

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

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.

FOX31's Lisa D'Souza takes a look at the Safeway Denver distribution center as union strikes begin in a few Colorado cities. More stores and cities could be affected soon as more votes are planned.

With the clock winding down toward Saturday night's deadline for new contract negotiations, a Colorado union has announced locations where grocery employees are set to walk off the job on Sunday in protest.