PASADENA (CBSLA.com) — Employees at the Pasadena Department of Public Health were evacuated Thursday after receiving a bomb threat.

KNX 1070′s Margaret Carrero reports the threat comes just one day after a man called in a bomb threat at a middle school down the street.

Police received the phone call around 9:00 a.m. this morning from a man claiming there was a bomb inside the building on 1845 Fair Oaks Avenue.

Pasadena Police Lt. Phlunte Riddle said they then called in Los Angeles County Sheriff’s deputies along with bomb-sniffing dogs, but no explosive devices were found.

That search was later called off after authorities received a second call – presumably from the same person.

A suspect had been taken into custody sometime after 1:00 p.m., according to Riddle.

Investigators were working to determine whether the threat was related to another incident on Wednesday when a man called in a bomb threat at nearby Washington Middle School.