Russian Military Helicopter Crashes During Air Show, Kills Pilot

MOSCOW  — A Russian military helicopter from an elite aerobatic squadron crashed Sunday during an air show, killing one pilot and injuring another, the Defense Ministry said, the latest in a series of accidents that have dogged the nation's air force this year.

The Mi-28 helicopter gunship was part of a flight of helicopters from the Berkut aerobatics team performing stunts at the Dubrovichi firing range in Ryazan region, about 170 kilometers (105 miles) southeast of Moscow, when it went down. The Defense Ministry said the second pilot who survived the crash was in satisfactory condition.

A hydraulic system failure causes the chopper to slowly lose control before hitting the ground and exploding.