Russia's association of tour operators has released the names of all 224 people who were on board the Kogalymavia Airbus A321 that crashed on the Sinai Peninsula on Saturday. Russian authorities say there are no survivors.
While the exact cause is still unknown, sources involved in the investigation told Russia's Interfax news agency that the crash is believed to have been caused by mechanical failure. But investigators are looking at all possible causes and weighing the "human factor and poor weather conditions combined with complicated mountainous terrain.
Among the 217 passengers were 17 children. Egyptian officials said 214 of the passengers were Russian and three Ukrainian.