The victims were 15 passengers and three crew members.
Russian news reports said all the passengers killed are believed to have been working for a subsidiary of the state oil company Rosneft. "As a result it fell, was destroyed and burned".
The incident occurred when a Russian-made Mi-8 aircraft knocked into the cargo of an adjacent helicopter as both were completing take-off in the Krasnoyarsk region, watchdog Rosaviatsia says..
The helicopter was operated by Russian national airline Utair, which has its head office in Khanty Mansiysk airport in western Siberia.
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The report says the death of the 10-year veteran highlights the need for better risk assessment, communication and supervision. The Mendocino Complex has destroyed at least 55 homes, 47 other structures and threatens 12,300 buildings, Cal Fire reports.
A well-informed official in the law enforcement agencies told TASS the helicopter had taken off from the town of Igarka, located on the River Yenisei to the north of the Arctic Circle.
It added that the pilot was born in 1985 and was trained at the Omsk Aviation School in southwestern Siberia.
The country's Investigative Committee said it opened a criminal investigation into the crash.
A spokesman for the emergency team said two flight recorders had been found at the site of the crash.
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Helicopters frequently carry loads in slings that hang below the craft.
The Mi-8 helicopter crashed in the Krasnoyarsk region of Siberia. Meanwhile, black boxes from the Mi-8 have already been retrieved from the crash site, but their condition is yet unclear.
Eighteen people have been killed in a horrific helicopter crash after its blades hit cargo hanging off another helicopter.
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