We will remind, earlier it was reported that a helicopter with passengers crashed in the Krasnoyarsk region of the Russian Federation in the area of Igarka, and all aboard were killed.
The law enforcers said all the possible versions are under consideration including crew error and the equipment failure.
In Russia, the helicopter operator predominantly works with oil and gas companies, transporting people and cargo for clients including Gazprom, Shell and Rosneft.
The Turkish foreign minister on Saturday offered his condolences to the victims of a helicopter crash in Siberia. "Second to take off was a Mi-8helicopter carrying passengers", the watchdog said.
The helicopter's rotors hit meal pipes which being lifted by another Mi-8, say officials from the site. "As a result it fell, broke apart and caught fire", the watchdog said, adding weather conditions were normal.
The helicopter with cargo carrying no passengers landed safely after the crew dropped the external suspension, it added.
The Criminal Investigation Department of Russian Federation continues to investigate the crash under the criminal code for violation of safety rules that resulted in the death of two or more persons by negligence, Kommersant reported.
The Investigative Committee has launched a criminal investigation into the neglect of aircraft safety guidelines.