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.

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.

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.

GRAND JUNCTION, Colo. (KREX) — On Tuesday, Safeway employees at the 29 Road and Patterson location went on strike, joining other stores in the state, calling for change. The strike closed the store, leaving shoppers to purchase their groceries elsewhere.

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