All flights from Stuttgart Airport were temporarily suspended over an an 'imminent bomb threat', German media has reported.

Two passengers are said to have been arrested after a someone claimed they overheard them threatening to bomb the plane which was due to fly to Varna, Bulgaria.

There is reported to have been an argument between the three passengers on the flight before take-off, at around midday.

All flights from Stuttgart Airport (file photo) were temporarily suspended over an an 'imminent bomb threat'

'In view of the global political situation and the way in which the passenger met us, we had to take the threat seriously,' Welt quoted a federal police spokesman as saying.

'During the routine departure check-out, a passenger told us that another passenger had threatened a bombing operation on the aircraft.

All take-offs and landings were temporarily suspended as the flight was searched but operations have since resumed.

Earlier this month, a section of Manchester Airport was evacuated after a suspicious bag was found unattended.

A bomb squad rushed to Terminal Two to conduct a controlled explosion while passengers were left stuck on planes while the evacuation took place.

Two passengers are said to have been arrested after a passenger claimed they overheard them threatening to bomb the plane (file photo)

Police said it was a precautionary measure and not connected to the bombing of the Manchester Arena which killed 22 almost three weeks ago.

Passenger Chris Hawkins wrote on Twitter: 'Whole place evacuated. Police & fire arriving from all directions. Hundreds of people all over area.'

A Manchester Airport spokesman said: 'Due to an unattended bag being found in Terminal Two, a controlled evacuation is currently taking place, as is standard procedure.