During an exercise on September 22, 2020, a Russian Su-30 fighter jet was shot down by another aircraft. Both pilots successfully managed to eject.

A day after the Russian Ministry of Defense reported that one of its Su-30 fighter jets crashed, media reports say that the aircraft was in fact brought down by friendly fire.

"According to preliminary data, the Su-30 was accidentally hit during the drills by another aircraft," an emergency services source told TASS agency. Other media sources report that it was targeted by a Sukhoi Su-35, which had been armed by mistake. The aircraft crashed in a wooded area of the Tver region, near the Russian border with Belarus.

In April 2017, a Russian MiG-31 fighter jet crashed during a training mission after being shot down by its own wingman.

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A Russian MiG-31 fighter jet crashed during a training mission on April 26, 2017. Until now, the reason was kept secret by the Russian Ministry of Defense. But new information suggests that the aircraft might have been shot down by its own wingman.