The British man who was the sole survivor of last week's Air India plane crash has helped lay his brother to rest at a funeral in western India. Vishwashkumar Ramesh's brother Ajay was also on the ill-fated flight but did not survive the tragedy.

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.

There have been cases of a very small number of survivors in very serious accidents, but it is "very rare" for there to be only one, a professor told Newsweek.