Employees with AFSCME District Council 33, Philadelphia's largest blue-collar workers union, could go on strike Tuesday morning at 12:01 a.m. if representatives do not reach a deal with the city by then.

PHILADELPHIA (AP) — Nearly 10,000 city workers in Philadelphia who collect trash, answer 911 calls, maintain city pools and perform other jobs went on strike Tuesday after contract negotiations broke down. District Council 33 President Greg Boulware said the city hadn’t agreed to a high enough wage increase, WPVI-TV reported.

Representatives from AFSCME District Council 33 and Mayor Cherelle Parker's administration resumed talks Monday night to avert the first major city worker strike since 1986.