The Daily Sentinel reports the United Food and Commercial Workers Local 7 union announced Monday that it had ended a contract extension after the previous collective bargaining agreement started expiring at stores across the state last month.

The union says in a statement that negotiations with the company for a new agreement have made “little progress.”

The union ending the contract extension doesn’t mean a strike is coming, but one could be possible if a new agreement isn’t reached.

Negotiations between the company and union representatives were scheduled to begin again Monday.

The union represents about 12,200 workers at King Soopers and City Market stores.