The Spalding County courthouse was evacuated Tuesday after a bomb threat was phoned in, according to police. But investigators were unable to find a suspicious device.

The threat was called in to 911 around 4 p.m., according to Capt. Tony Ranieri with the Spalding County Sheriff's Office. Everyone inside the courthouse, in Griffin, was evacuated, he said.

A bomb squad from Clayton County was dispatched to the scene to assist with the investigation, Ranieri said.

Several streets near the courthouse, including Hill, Solomon, Bank and 6th streets, were temporarily closed during the investigation.

Nothing was located during a search of the building, Griffin police Chief Frank Strickland told Channel 2 Action News.