Azharuddin Abdul Rahman, director-general of the Malaysia Department of Civil Aviation, told AFP News that a Malaysia Airlines plane returned to Kuala Lumpur International Airport because it was unable to maintain the correct pressure inside the aircraft.
The Star Online reported that the Malaysia Airlines flight from Kuala Lumpur to Tokyo was 50 minutes into its journey when it was forced to return to Kuala Lumpur after taking off at 0250 GMT.
Passengers were subsequently transferred to another plane which departed at 0515 GMT, it said.
