VORKUTA, Russia, Dec. 20 (UPI) -- Thirteen people were injured when a helicopter owned by a subsidiary of Gazprom made an emergency landing near Vorkuta, Russia, officials said.
The Mi-171 was en route from Bovanenkovo to Vorkuta with 25 people aboard when it was forced to land Saturday about 2.5 miles from Vorkuta, RIA Novosti reported Sunday.
The 13 injured people all were hospitalized, said Russia's federal Air Transport Agency, which is investigating the cause of the forced landing.
The helicopter is owned by Gazpromavia, an airline belonging to the Russian utility giant Gazprom.
Bovanenkovo is home to the largest natural gas field on the Yamal Peninsula. Expansion facilities to be completed in 2011 are expected to extract an estimated 115 billion cubic meters of gas from the Bovanenkovo field annually, RIA Novosti reported.