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.

The family of three Britons who died in the Air India plane crash are calling on the UK government to provide more support in India. Akeel Nanabawa, Hannaa Vorajee and Sara Nanabawa, aged four, were returning home to Gloucester when their plane ploughed into a residential area in Ahmedabad on Thursday.