Several roads in downtown Jacksonville were closed after a suspicious item was found Tuesday, JSO says.
Monroe Street and Duval Street have since reopened.
A tenant at a neighboring building said he found what appeared to be an old grenade while cleaning out a building.
JSO says patrol officers evacuated nearby businesses and secured the scene while waiting for the hazardous devices unit.
That unit evaluated the item and determined it was not a grenade and did not contain any explosives, JSO said.
The scene was determined to be safe and JSO cleared the area.
Cox Media Group