There were 25 people on board. It was earlier said that 15 out of 26 people on board died.
The civilian helicopter was carrying workers to an oil production site at Vankor, an oil field belonging to Rosneft.
According to a Rosneft statement, there were three crew members and 22 passengers on board. It said that 10 people, including three crew members died.
"The cause of the incident is being investigated," Rosneft said in the statement.
Source: Kyivpost
