A U.S. FAA official said Wednesday that there’s “zero” evidence to support reports that an airplane disappeared from radar in the hours before it was supposed to land at San Francisco International Airport.

The official, who spoke on condition of anonymity because the investigation was ongoing, said the FAA has not received any information that the plane had flown for more than a day.

The flight was bound for Kuala Lumpur, Malaysia, with 239 people on board, including a U.K. citizen.

It was supposed at 9:44 a.m.

ET on Monday, when the plane was scheduled to take off.

The FAA said it has been notified of the flight, but it has not been confirmed that the flight was actually on time.

A flight attendant told CBS News that the crew was late to land because they had been in the process of changing tires and were trying to find a taxi.

The flight was delayed more than two hours, and all 239 passengers were able to disembark, according to the airline.