Investigators have recovered the cockpit voice recorder (CVR) from the crashed Air India flight, a key step in uncovering what caused last week's deadly accident. The London-bound Air India aircraft,

All but one of those on board an Air India flight bound for London Gatwick Airport that crashed shortly after take-off in western India on Thursday have died, the airline has confirmed.

Doctors in India say 270 bodies have been recovered from the site of Thursday's plane crash in Ahmedabad.