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.

Tributes have been paid to a "loved and adored" man who died in a plane crash in India. Ashwin Harrington, 27, from Sudbury, Suffolk, was one of the 242 passengers and crew killed when a London-bound Air India aircraft crashed in Ahmedabad on Thursday.

NEW DELHI (Reuters) -The head of Boeing Commercial Airplanes, Stephanie Pope, met the chairman of Air India on Monday in India, two sources said, as the companies seek to find the cause of last week's fatal crash involving a Boeing 787 Dreamliner.