COLUMBIA, Mo. -

Police are investigating a suspicious incident at a Columbia fast food restaurant Monday night.

Officers were called to the Taco Bell off Stadium Boulevard around 8:40 p.m. for a report of a bomb threat.

An employee told ABC 17 News the threat prompted the restaurant to evacuate.

Columbia police would only confirm it was a suspicious incident. Officers were on the scene investigating for more than an hour.

No explosives were found at the scene.