An investigation has been launched after a Russian passenger plane landed on a frozen river near an airport in Russia's far east on Thursday... It's not the first time a Russian plane has landed in an unusual location in recent months. In September, a Ural Airlines Airbus 320 that was flying from the Black Sea resort of Sochi to the city of Omsk in southwestern Siberia attempted to make an emergency landing at the airport in the city of Novosibirsk, but had to land in open countryside. Russia's aviation agency Rosaviatsia said the landing took place "on a site selected...