This Ryanair plane was scheduled to make a connection between Krakow in Poland and Dublin in Ireland, Monday late afternoon.
During the flight, a note was discovered in the aircraft's toilet, claiming that there were explosives on board. The alert is immediately given.
Two British Air Force fighter planes will quickly frame the plane to escort it by diverting it to London Stansted Airport.
Two men, 26 and 47 years old, who were on board, were arrested. But a careful inspection of the plane did not reveal any explosive devices.
"After inspecting the plane, we were able to establish that there was nothing suspicious on board," said police in Essex (south-east England).