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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Dozens of email accounts are thought to have been compromised in a "determined and sustained" attempt to access Parliamentary accounts.
Speaking at Glastonbury Festival, the shadow chancellor said people who died in the Grenfell fire were "murdered by political decisions".
It's the largest Eid event in Europe, and today's figure smashed last year's record 88,000 people in attendance.