It\’s no secret HARD Summer Music Festival has suffered from tragic deaths in the past. The San Bernardino County Sheriff Coroner\’s Division has officially ruled the cause of death of three attendees at July\’s HARD Music Festival as ecstasy overdoses.¬†Derek Lee, 22, Alyssa Domingo, 21, and Roxanne Ngo, 22, passed away of acute MDMA toxicity. There were nine medical transports throughout the two-day event, which hosted about 146,000.

This was HARD Summer\’s first year in the city of Fontana, California, following a move from its usual home of Los Angeles. San Bernardino County considered banning electronic music festivals¬†earlier this year but has taken no official action.