A major international search is under way in the Mediterranean Sea after the disappearance of an EgyptAir passenger jet with 66 people on board that experts now believe was due to terrorism. 
A dual Australian-British citizen has been confirmed to have been on board.
Richard Osman, 40, was travelling on Flight MS804 from Paris to Cairo, where he worked as an executive with mining company Centamin, when the plane disappeared between the Greek island of Crete and Egypt's coastline on Thursday.
The geologist and new father who had previously worked in a West Australian gold mine has been identified as a passenger on board the missing EgyptAir flight that abruptly swerved before vanishing from radar.
Just two weeks ago, Mr Osman and his wife, Aureilie, had welcomed the birth of their second daughter, Olympe, a sister for one-year-old Victios. Welsh-born Mr Osman was said to be "deliriously happy" at becoming a father again, his brother Alistair told the South Wales Evening Post.
"Richard was so happy at the birth of his second daughter, and yet two weeks later he is no longer with us. It's an absolute tragedy," Alistair Osman said. "He was really happy about having the baby and was looking forward to enjoying a lovely family life with his two girls."
Australian Foreign Affairs Minister Julie Bishop confirmed an Australian-British dual national was on board the missing flight.
Contact with the flight was lost 10 miles after entering Egyptian air space and 20 minutes from its destination. The flight plummeted from its cruising altitude, veering right and left and disappeared from radar screens at 10,000 feet.
The loss of the flight, EgyptAir 804, was the second civilian aviation disaster for Egypt in the past year. It immediately resurrected fears about terrorism against civilian air travel.