A JETSTAR flight en route from the Gold Coast to Sydney made an emergency landing at Newcastle Airport this evening after smoke reportedly started filling the cabin.

A Newcastle Airport spokesman said the Airbus A321 – performing flight JQ413 – touched down with about 190 passengers on board.

The plane was met by military trucks and other emergency services vehicles on the tarmac before the passengers disembarked.

A Jetstar spokeswoman said engineers were currently on board the plane trying to confirm what caused the emergency.

She said the flight was diverted on the captain’s instructions and it remains unclear what exactly happened during the flight.

She said Jetstar’s operations team and engineers were working to confirm reports that smoke was seen billowing from a toilet on the Airbus.

Jetstar arranged for a cavalcade of buses to transport terrified passengers from Newcastle to Sydney.

A NSW Police spokeswoman said officers had attended the plane’s arrival into Newcastle but have since left.

There were no arrests or reports of suspicious activity, and there were no injuries.

A Jetstar spokeswoman confirmed the plane was diverted after crew noticed a strange smell in the cabin.

“The captain on Jetstar flight JQ 413 from the Gold Coast to Sydney elected to divert to Newcastle as a precaution after crew reported a smell in the cabin,” she said via a statement.

“The flight landed safely and without incident at Newcastle. Engineers are currently assessing the aircraft to determine the cause of the smell

“We’ve arranged buses to transport customers from Newcastle to Sydney and these will depart shortly.”