A helicopter packed with passengers crashed in Siberia killing at least 19 of the 28 people aboard, Russia's civil aviation commission said.
The Mi-8 aircraft operated by Polar Airlines caught fire after crashing in the Sakha region with 25 passengers and three crew members on board, the Interstate Aviation Committee said.
Citing a surviving crew member, the committee said on its website that 19 people were killed.
State-run Itar-Tass later cited a regional government official as saying 23 people were killed and five survived, including a child.
Sakha, also known as Yakutia, is a vast region stretching north of the Arctic circle and helicopters are frequently used to transport people to remote areas.