A United Airlines flight to Los Angeles from Honolulu had to turn around after a "potential security concern" was found in the plane's bathroom, according to the airline.

A United Airlines plane had to abort its flight after a strange message was written on the bathroom mirror - the flight was carrying more than 300 passengers at the time

A United Airlines flight from Honolulu to L.A. returned after a bomb threat was found written on a lavatory mirror.