Clash of helicopters in Berlin (5 photos)

Over the Olympic Stadium in Berlin, two helicopters collided.
The incident occurred during the exercise of federal police - more than 400 employees were trained to suppress possible riots in the matches.
As a result of the disaster one person was killed and five others injured, four of them are in serious condition.
According to preliminary data, the approach each other helicopters hooked blades.
"Our experts have decided that the exercise will be carried out, in spite of the snow," - said a police spokesman.













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