More than 100 people were evacuated from a plane on the runway at a Houston airport in the southern United States on Sunday due to an engine issue, federal authorities and the airline said.

A United Airlines flight in Houston had to be evacuated Sunday morning before takeoff after flames started coming from one of the plane’s engines, the latest in a string of aviation incidents this past week.

The 104 passengers and five crew members aboard the flight were evacuated on the runway with slides and stairs, according to United Airlines.