In a statement, organizers for Hard Summer at The Forum explained they’d been forced to pull the plug on the event after it was declared a “hazard” by officials for the Los Angeles County Fire Department.

Fire and police officials apparently got nervous when they saw fans “jumping from the balcony to the floor, along with numerous other potentially dangerous activities.”

Another issue for authorities was an over-capacity crowd.

Promoter Gary Richards, who told LA Weekly he’d been planning for a 15,000 turnout, was given an official tally of 17,500 by police around 11 p.m. the night of the show, the paper reported.

“This kind of event you’re doing for 17,000 people might work for 5,000,” Inglewood Lt. Steve Overly told the promoter as he ordered the event to be shut down. “I feel bad for you. This is probably our only safe opportunity to get everybody out.”

Concertgoers reported seeing fights break out and fans trying to storm the gates, the paper noted. However, concert officials said in a statement they were “happy to report that there were no major injuries.”

“While we, the promoters, worked with the authorities to consider other options to continue the concert, ultimately they made the decision based on the safety of the concertgoers,” the statement said.

Hard Summer, which was set to feature dance and electronic acts including Underworld, Chromeo, Crookers and Crystal Castles, offered refunds to all concertgoers through their point of purchase.

Officials for the festival had no further comments at press time.