Two Su-34 fighter bomber planes collided during a training flight in the Lipetsk region, the Russian news media outlet REN-TV reported.
Both aircraft managed to land successfully and no-one was injured.
However, both aircraft sustained serious damage. The cabin, engine and fuselage of one of the planes were damaged. The wingtip was ripped off the other, which contained equipment that was part of its electronic countermeasures system.
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