After 72 concert-goers were injured by a lightning strike during an outdoor festival in Mendig, Germany, Friday, organizers announced Saturday that the event has been suspended.

Mayen police spokesman Lars Brummer told the Associated Press that the overall number of those hospitalized after the strikes at the 31st annual Rock am Ring festival increased overnight. Initially at least 50 people were said to have sustained injuries.

"The same stubborn gyre of low pressure aloft that triggered flooding rain in Germany and France also triggered thunderstorms in western Germany over the festival Friday night,” said weather.com meteorologist Jon Erdman.

(MORE: Soldiers Rescued From Tallest Peak in Rocky Mountain National Park )

The German Red Cross told AP that 72 people were taken to the hospital due to the storm, including those that were shocked by nearby lightning strikes, were hit by flying debris or had serious asthma attacks. Spokesman Frank Bredel said one person had to be revived by paramedics and remained in critical condition Saturday.

According to Brummer, “a number of those hospitalized have been discharged again.” A news conference will be held later Saturday to divulge more information.

Eventim company chairman Klaus-Peter Schulenberg told AP that organizers are following orders from authorities to put the festival on hold after there were more warnings of bad weather. Attendees have been urged to take shelter, but the event may resume Saturday evening if weather conditions allow.

Just last week in Germany, 35 people were taken to a hospital after lightning struck a children’s soccer match . Three adults were seriously injured, including the referee, who suffered a cardiac arrest after being directly hit by lightning.

Parts of Germany had seen heavy rain and hail during last week.

MORE ON WEATHER.COM: 11 Injured in Paris Lightning Strike