Some union employees at King Soopers have voted almost unanimously to authorize a strike. The grocery chain in Colorado is owned by parent company Kroger.

The union workers of Kroger-owned King Soopers grocery stores in the metro Denver, Boulder, Parker and Broomfield bargaining units voted to go on strike, the union announced

Members of the union representing King Soopers workers have voted to authorize an Unfair Labor Practice strike. United Food and Commercial Workers Local 7 said in a release Thursday that vote meetings were held on Wednesday and Thursday for workers in the Metro Denver,

About 10,000 workers in Colorado’s Front Range, including 8,000 workers in the Denver metro area, are preparing to vote this week on a potential strike.