MOSCOW, Nov 17 (Reuters) - A Boeing 737 crashed on landing in the Russian city of Kazan on Sunday, killing all 50 people on board, the Emergencies Ministry said.

The flight from Moscow made a second attempt at landing and exploded on impact, killing all 44 passengers and six crew on board. The flight was operated by the regional Tatarstan airline, a ministry spokeswoman said. (Reporting by Douglas Busvine; Editing by Alison Williams)