We begin in Russia, where a Boeing 737 aircraft has crashed in Siberia, killing all 88 passengers and crew on board. +++LM+REIN+++ Contact was lost with the plane as it descended to land in the city of Perm near the Ural mountains. The plane was en route from Moscow and was operated by a branch of the Russian national airline Aeroflot. At least 21 foreign nationals were on board.