There are reports of some problems at the Bearded Theory festival which is happening in Derbyshire this weekend.
High winds have resulted in the roof covering of one of the stages falling onto the crowd.
Early reports say that 3 people have suffered minor injuries and a number of people have been treated for shock at the scene.
The stage has now been closed and the festival is continuing using the other two stages.
Full details of the incident are on the BBC website