Budget airline Scoot confirmed the two incidents on the May 14 flight.

A spokesman told The New Paper yesterday that the flight had to be diverted to Bali as one couple who "allegedly fought with each other" required medical attention.

The spokesman said: "The third passenger (who was escorted off the aircraft) was intoxicated and abusive."

It was the captain's decision to have him escorted off the plane as he was seen as a "threat to the safety of the aircraft and passengers", said the spokesman.

Flight TZ001 arrived at Changi Airport at about 10pm, three hours behind schedule.

TNP understands that, similar to other airlines, Scoot has the right to remove passengers on a flight as stipulated in Scoot's condition of carriage.

Passengers can be restrained or removed from any flight if they endanger the safety of the aircraft, person or property on board, behave in a manner which other passengers may reasonably object to, or tamper with aircraft equipment.

Passengers who breach the rules on board the aircraft may be prosecuted.