About 45,000 grocery workers have authorized a strike at Ralphs, Albertsons, Vons and Pavilions stores in Southern California to protest unfair labor practices.

Union members of the United Food and Commercial Workers (UFCW) in Southern California and the Pacific Northwest have voted this week to authorize a worker strike against Kroger and Albertsons stores, Supermarket News reported.

Workers at Ralphs stores in Southern California are among the unionized grocery workers who could go on strike this summer. Members of United Food and Commercial Workers (UFCW) local unions representing 45,