An Allegiant plane was evacuated after a flight attendant found a threat on a bathroom door, according to Pinellas County Sheriff Bob Gualtieri.

The St. Pete-Clearwater International Airport has resumed normal operations and there are no safety concerns at this time after a written bomb threat on an Allegiant flight on Friday, according to the Pinellas County Sheriff's Office.

CLEARWATER, Fla. - A written bomb threat discovered on an Allegiant Airlines flight at St. Petersburg-Clearwater International Airport (PIE) prompted an immediate evacuation and grounding of all airport traffic this afternoon.