(June 25) Grocery workers in Southern California voted Sunday to give the United Food and Commercial Workers union authorization to strike if negotiations fail to produce an acceptable contract, the Los Angeles Times reported.

The measure was approved by 95% of those voting. Results were expected to be formally announced Monday, the newspaper noted.

The latest vote involved employees of the Vons and Ralphs chains. Workers at Albertsons approved a similar measure in March.

The authorization vote does not neccessarily mean workers will strike, but it gives the union added leverage in ongoing negotiations.