Three members of a Russian warplane crew died Tuesday when their ejection seats accidentally activated during preflight checks, the military said.
The Russian Defense Ministry said that the incident happened on Tuesday at a military airbase in the Kaluga region, about 145 kilometers (90 miles) southwest of Moscow.
It said the crew of a Tu-22M3 long-range bomber was preparing for a training mission when its ejection system malfunctioned and accidentally bailed the crew out. The ministry said the altitude was not enough for the parachutes to open and the three crew members died of injuries.
An official investigation into the incident has been launched.
The Tu-22M3 is a supersonic twin-engine long-range bomber, which is capable of carrying nuclear weapons.
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