Workers at stores in metro Denver and other parts of Colorado could hit picket lines as early as Sunday morning.

On Monday, workers at more Safeway stores went on strike, demanding better pay, benefits, and staffing levels.

New Safeway locations joined UFCW Local 7's strike efforts, bringing the total to six locations across the state with more expected in the coming days. It's the first Safeway strike in almost 30 years ...

"Safeway needs to come back to the table and bargain in good in good faith," Cordova says. "They did not prepare for a labor dispute. ...They literally thought workers were not going to strike ...