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.

State leaders urge Republic Services to finalize contract with striking Teamsters as uncollected garbage piles up in Massachusetts communities and other states across the country.

Negotiations between Republic Services and Teamsters broke down late last week. Talks are set to resume Tuesday, but the impacts of the trash strike are growing more pronounced.