N-tv television and the Bild newspaper said the accidentoccurred in snowy weather on Thursday morning when around 400 federal police officers were conducting a training exercise on dealing with football violence.
Footage on n-tv showed at least one helicopter on its side on the ground.
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The president extended for one year the so-called ‘national emergency’ with respect to the nuclear-armed nation.
"He had just got his life on track," Susie and Perry Hood told ITV News.
The magazine attached a correction to the story which got worldwide attention.