Nine people were stabbed on Saturday night during one of Swedish House Mafia’s final shows together. The incident took place at Dublin, Ireland’s, Phoenix Park and a suspect in the case appeared in court on Monday (July 9) morning to answer to the charges.

According to
, the unnamed 23-year-old man is just one of a number of suspects police are searching for in the stabbing spree, which was part of what officials are calling a "significant number" of unprovoked attacks at the show. Two people were seriously injured at the show, where a 20-year-old man also died unexpectedly from a suspected drug overdose.

Investigators believe the suspect in custody stabbed as many as four people and that the other victims’ injuries were a result of fights with knives and broken bottles. More than 45,000 people attended the show headlined by Swedish House Mafia and a spokesman for the event said that closed-circuit TV footage had been handed over to police, adding that ticket holders were subject to searches before entering the site.

"Every precaution, as far as possible, was taken to ensure the safety and security of the audience at all times," said Denis Desmond. "Despite our best efforts – with security and gardaí [Irish police] personnel levels well in excess of the required numbers for a licensed event of this size – there is only so much one can do to combat anti-social behavior."

The Irish Independent reported that three men remained in a hospital as of Sunday, with two in serious, but stable condition. The sister of one of the men said that her brother had been stabbed four times in the back by an unknown assailant and later suffered a collapsed lung.

SHM announced in June that they were calling it quits , but not before a final spate of shows. The Phoenix Park gig is one of the last festival events on the trio’s current slate of goodbye shows, though more are expected to be announced in August.