Smoke was detected in multiple places on the EgyptAir plane before it crashed, French investigators said. Investigators also said the priority is to find the flight's data recorders of the missing jet. Richard Osman, from Carmarthen, was one of 56 passenger on board.
Richard Osman, the Welshman on board the EgyptAir flight which crashed in the Mediterranean, has been described as a devoted dad.
Foreign Secretary Phillip Hammond says he must now be feared dead after wreckage of the plane was found.
Watch: Dean Thomas reports from Carmarthen
Richard Osman, a 40-year-old father of two, originally from Carmarthen, Wales, was on board the the Airbus A320 when it crashed in May.
A friend of the British man on the crashed EgyptAir flight, has spoken about the shock of discovering his friend was among the passengers.
The Welsh victim of the EgyptAir crash was a "kind, loving" father-of-two who was "admired by many", his brother has told ITV News.