Investigators in India are studying the black boxes of a Boeing 787 Dreamliner after recovering them from the aircraft wreckage to ascertain the cause of last week’s plane crash that left at least 270 people dead.

Almost all those on board an Air India flight bound for London Gatwick Airport that crashed shortly after take-off in western India have died, the airline has confirmed. There were 242 passengers and crew on board the plane,

All but one of the 242 souls aboard the Boeing Dreamliner 787 perished in the crash, and more than three dozen were killed on the ground.