MOSCOW (AFP) - A Russian passenger plane was forced to make an emergency landing on the Ob River in Siberia on Monday, killing at least five people, officials said. The Antonov-24 belonging to the Angara airline was carrying 33 passengers between Tomsk and Surgut when an engine caught fire forcing it to ditch in the river in the Tomsk region of Siberia, the investigative committee said in a statement. The regional airline said on its website that the plane's left engine caught fire, forcing it to make the emergency landing.