King Soopers union members established picket lines at 77 grocery stores throughout the Denver metro area Thursday to protest unfair labor practices. State of play: The labor dispute is expected to last two weeks and affect about 10,

Some 10,000 grocery store workers are now on strike in Denver and nearby areas, claiming unfair and illegal negotiating practices by the King Soopers store chain

After union members approved a strike, UFCW Local 7 said a two-week walkout will “allow everyone to understand our concerns.”