(Adds death toll, details)
MOSCOW, Dec 26 (Reuters) - A Russian plane crashed in Siberia on Thursday, killing nine people, domestic news agencies reported, citing local emergency service officials.
The Soviet-built Antonov An-12 plane belonging to an aircraft factory in Novosibirsk was carrying six crew and three others on a flight to another factory in Irkutsk, Itar-Tass reported.
The turboprop plane fell on warehouses at a military unit outside Irkutsk, causing a fire, but no casualties were immediately reported on the ground, an emergency service official said.
Technical malfunction and pilot error were seen as potential causes, a security source was quoted as saying.
Russia and other former Soviet republics together have one of the world's worst air-traffic safety records, with a total accident rate almost three times the world average in 2011, according to the International Air Transport Association. (Reporting by Alexei Anishchuk; Editing by Steve Gutterman)