Union workers are expected to strike at King Soopers stores in Boulder, Broomfield and Louisville starting at 5 a.m. Thursday as part of a general strike at 77 stores in the Denver metro area,

Around 10,000 King Soopers workers in several Colorado counties wrapped up the vote over the weekend to begin what the Union calls an Unfair Labor Practice strike.

A Kroger spokeswoman contacted by Progressive Grocer for comment noted: “While disappointed by the outcome of Local 7 obtaining strike authorization, King Soopers remains committed to its primary focus of increasing associates’ paychecks while keeping groceries affordable for customers.