The Smiling Suicide Bombers...

Here are the faces of the three suicide bombers - seen smiling together just moments before they carried out a deadly massacre, killing 42 and injuring hundreds.

The men - wearing heavy jackets and carrying a holdall - were caught on camera as they walked into Ataturk Airport on Tuesday evening to begin their murderous rampage through the terminals.

Security sources have claimed all three came from countries which once fell under the control of the Soviet Union, Dagestan, Kurdistan and Uzbekistan, and may have been part of ISIS' Russian-speaking terror cell.

It is thought there were eight other people involved in the terror plot.