DENVER >> A United Airlines passenger jet suffered minor damage at Denver International Airport on Saturday when an engine backfired at a gate while it was being moved by mechanics, causing a small fire.

DIA spokeswoman Mindy Crane says there were no passengers on board and the fire was quickly put out by the Denver Fire Department. No injuries were reported.

Denver Fire Department Lt. Mike Pylar says the small fire did not damage any other parts of the Boeing 757 aircraft.

United said the plane was being readied for a trip to Orlando, and passengers were rebooked on other flights.