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.

The preliminary finding gives investigators a new line of inquiry as they study a crash that killed all but one of the plane’s passengers.

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.