A suspicious package found on a police car in downtown Long Beach Thursday morning prompted police to briefly shut down streets in the area while the bomb squad investigated, according to authorities.

Officers were on a call at about 5:50 a.m. near Pine Avenue and First Street when they returned to their car and “found a suspicious box with wire sticking out of it on the trunk of their police car,” Long Beach police department spokesman Sgt. Brad Johnson said.

Police called for Los Angeles County Sheriff’s Department bomb squad who responded and determined the package wasn’t an explosive, Johnson said.

Street closures left some workers stuck behind police tape waiting to get to their jobs.

“I pulled up right here and everything was blocked off,” said Alicia Alvarado, who was trying to get to a logistics business at First Street and Pacific in time for her shift.

While the bomb squad investigated, police shut down Pine and Pacific avenues from Ocean Boulevard to Broadway. They also closed First Street from Pacific to Long Beach Boulevard, police said.

Blue Line trains were also bypassing the station on First Street for a short time, according to a transit official.

Authorities cleared the area and reopened streets shortly before 8 a.m. except for a small stretch of Pine between First and Broadway that remained shut down for further investigation, Johnson said around 9 a.m.