Plane crashes in Russia

Russian investigators on Monday combed through the charred fragments of a Boeing 737 jetliner as they tried to determine what caused its crash that killed all 50 people on board.

The plane belonging to Tatarstan Airlines crashed Sunday while trying to land at its home port in the Russian city of Kazan, the capital of the oil-rich province of Tatarstan. The son of the provincial governor and the chief of the local branch of Russia's main security agency were among the victims. (AP)