He has been detained, along with two airport policemen and a baggage handler suspected of helping him put the bomb on...
Explosives experts said it was feasible the device shown in the photo could bring down a plane
"We will find them anywhere on the planet and punish them," Putin said
Islamic State's Egypt branch has since killed hundreds of soldiers and policemen for past two years
Egypt and Russia have yet to formally announce the cause of the disaster.
But Moscow said it was premature to reach conclusions that the flight was attacked.
"We've looked at the whole information picture but of course lots of other bits of information as well, and concluded...