An EgyptAir flight from Paris to Cairo is thought to have crashed into the sea with 56 passengers and 10 crew on board.
Flight MS804 departed the French capital at 11.09pm (CEST) before vanishing, according to what the airline described as “an informed source”.
The airline said that the plane, which was carrying two babies and one child among its passengers, lost contact with radar at 2.45am Cairo time (1.45am BST). Its final contact with air control was 10 minutes earlier.
Greek authorities have joined special teams from the Egyptian armed forces in the search for the jet.