The Chico Police bomb squad responded to a report of a suspicious bag found outside the Chico social security office at 1370 East Lassen Avenue.
Officers used a robot to take a closer look at the bag and determined it was an empty suitcase.
Chico Police said it was reported around 8 a.m. Monday on East Lassen Avenue in North Chico.
East Lassen Avenue was closed between Ceres Avenue and Cohasset Road.
The area was cleared around 11 a.m.