What happened to Flight MS804? Experts baffled as to what sent EgyptAir jet into mysterious ‘37,000ft death spiral’

last night.

The University of Swansea PhD student said: "Aureilie [Richard's wife] had warned him to be careful but he took the view that it's never going to happen to you. He just laughed it off.

"We kept in touch regularly and I would speak to him a couple times a month but he never mentioned the possible threat of terrorism on his flights across the Mediterranean to me.

"But the family was worried because Isis and groups like them don't think that any of their victims have family members or a past or a history of hopes and dreams.

"My sister Anna mentioned the dangers to me

"Richard was such a fit and busy person who was always on the go that I can't believe he has gone."

Distraught families of passengers and crew were ushered into a private area at Cairo Airport as news broke.

Some said they were being kept in the dark over what had happened.

It was announced that 30 Egyptians, 15 French, two Iraqis and individuals from Canada, Belgium, Kuwait, Saudi Arabia, Algeria, Sudan, Chad and Portugal.

Ayman Nassar, a relative of one of the passengers, said: “They told us the plane had disappeared and that they’re still searching for it and not to believe any rumours.”

Another man wept with his hands on his face and said: “How long will Egypt live if human lives are so cheap?”

Anyone concerned can call 0800 7777 0000 from any landline in Egypt and +202 259 89320 from any mobile phone or from outside Egypt.

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368