Lightning Injures 33 People at Germany's Rock am Ring Festival

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Dave Grohl of the band Foo Fighters performing at the Invictus Games Closing Concert in Queen Elizabeth Olympic Park, London on Sept. 14, 2014.

Authorities in Germany say 33 people have been hurt after lightning struck a rock festival in western Germany overnight.

The Rock am Ring festival in the town of Mendig was hit by two lightning strikes early Saturday, June 5.

Police and organizers said eight people from production teams were injured when the first strike hit the backstage area around 1 a.m.

Organizers later halted concerts and offered visitors shelter in large, lightning-proof tents. A little before 4 a.m., lightning hit the festival's camping area and another 25 people were injured.

Police say all of those injured have been taken to hospitals for observation and are in good health. None suffered a direct hit by lightning. The festival, which runs Friday through Sunday, is going ahead as planned.

Artists on the lineup are Foo Fighters, Bastille, Prodigy, Interpol and many others.