An AirAsia Indonesia flight has been forced to turn back to Australia after pilots were alerted to a possible loss of cabin pressure.
Flight QZ535, bound for the Indonesian island of Bali, changed course about 25 minutes after take-off yesterday (15).
The Airbus A320, carrying 151 people, landed safely at Perth Airport.
AirAsia said the flight experienced a "technical issue".
"AirAsia apologizes to passengers for any inconvenience caused," the statement said.
In December 2014, an AirAsia plane crashed into the Java Sea, killing all 162 people on board after the aircraft's rudder control system malfunctioned during the flight.