Russia's defense ministry says one of its attack helicopters has crashed in a region northwest of Moscow, killing at least one crew member.
Defense Ministry spokesman Igor Konashenkov said the wreck of the double-seated Ka-52 Alligator helicopter was located Tuesday around 10 kilometers (six miles) west of an airfield in the town of Torzhok.
Konashenkov says the navigator was killed in the accident and that the pilot is being treated for his injuries.
The Ka-52 is one of the most modern aircraft in Russia's arsenal and is designed to destroy tanks, perform terrain reconnaissance and engage in aerial combat.
Accidents involving older Soviet-built helicopters have claimed several dozen lives in Russia over the past two decades.