The Republic Services trash collectors strike in Massachusetts won't be resolved this weekend. The company and the union representing the workers will meet with a federal mediator again next Tuesday, July 15. No progress was made when Republic and Teamsters Local 25 met with the mediator Friday.

The Teamsters union said it had picket lines up at Republic Services locations in San Diego, Los Angeles, and Seattle. Other strikes against Republic, a national waste management firm, have begun in Georgia and Illinois.

Republic Services trash collectors are now striking in five states, including Massachusetts.