A 19-year-old Sydney man remains in custody in New Zealand after he reportedly wrote "I have a bomb" into an in-flight messaging app during a flight.
The teenager was arrested at Auckland Airport and charged with breaching the Civil Aviation Act, according to Immigration New Zealand.
He's been identified by local media as Meke Fifita who was returning to Sydney from Tonga on an Air New Zealand flight.
Fifita was arrested on Wednesday night and a court on Thursday heard he wrote the message because he considered it funny, Stuff.co.nz reported.
Judge Anna Johns reportedly ordered he pay a $3000 reparation sum.
Immigration New Zealand national manager Stephanie Greathead on Friday afternoon said the 19-year-old remained in custody.
"New Zealand police and INZ are working to confirm flight details to return the individual to Sydney," she told AAP in a statement.
