UPDATE at 2:55 p.m. Monday, Aug. 1, 2016: The dead have been identified, below. A statement from Hard has been added to the bottom. First posted at 2:30 p.m. Monday, Aug. 1, 2016.

Three people who attended the two-day Hard Summer festival in Fontana have died, authorities said.

Two people died after Saturday's festivities at the Auto Club Speedway, and one was dead following Sunday's party, according to San Bernardino Sheriff's Department spokeswoman Jodi Miller.

It wasn't immediately clear how the three died. In the past, drugs have often played a role in deaths at DJ-driven events such as Hard and Electric Daisy Carnival in Las Vegas. Extreme heat also may have been a factor; daytime temperatures were in the mid-90s.

Ecstasy, the drug of choice for such events, and warm weather don't mix, and crowded conditions paired with overexertion on the dance floor can add further trouble.

Over the weekend we reported that Kenani Kaimuloa, a 20-year-old who attended EDC Vegas in June, died as a result of “combined MDMA (ecstasy) and cocaine intoxication with other significant conditions, including environmental heat stress,” according to a report from the Clark County Office of the Coroner/Medical Examiner.

Last week it was revealed that the parents of 19-year-old Katie Dix of Camarillo, one of two ravers who died following last year's Hard Summer at the Fairplex in Pomona, is suing organizers of the event, including concert promoter Live Nation.

The suit alleges that organizers “turned a blind eye to the known risks” of drugs at the event. Promoters had no comment.

The deaths at a county-run facility, the Fairplex, prompted the L.A. County Board of Supervisors to consider a ban on raves at venues it controls. The body ultimately backed off the idea, but not before Hard Summer moved on to its third venue in three years. Each move has been clouded by death.

Following the board's move to consider a ban, Hard's next event went 21-and-older. Ticket sales were clearly much slower. Capacity was said to be 40,000, with possibly fewer people attending than would have been allowed. Nobody died.

Miller of the San Bernardino Sheriff's Department said 146,000 people attended Hard Summer in Fontana over two days. Three hundred and twenty-five arrests were made; nine people, including the dead, were taken to hospitals, she said.

We were told Hard organizers would issue a statement shortly. We'll post it here when we get it.

UPDATE at 2:55 p.m. Monday, Aug. 1, 2016: The organizers of Hard just sent us this statement:

We were deeply saddened to learn about the deaths of three people who attended the festival this weekend. While the causes of the deaths have not yet been determined, we ask everyone to keep them in their prayers. Our sincerest thoughts and condolences are with their family and friends.

UPDATE at 3:10 p.m. Monday, Aug. 1, 2016: The dead have been identified, according to a statement from the Coroner's Division of the San Bernardino Sheriff's Department:

Derek Lee, 22, of San Francisco, expired at Arrowhead Regional Medical Center on 07/31/2016 at 12:10 AM (701605639).

Alyssa Dominguez, 21, of San Diego, expired at Kaiser Foundation Hospital of Fontana on 07/31/2016 at 2:10 AM (701605640).

Roxanne Ngo, 22, of Chino Hills, expired at Loma Linda University Medical Center on 08/01/2016 at 3:04 AM (701605664).

Cause was still under investigation. If drug testing is conducted, the results won't be known for weeks.

See also:
Family of Fallen Raver Sues Festival Promoter
Ecstasy, Cocaine Cited in Death of SoCal Raver
Hard's New Stand Up + Dance Crew Aims to Keep Hard Summer Safe
Two Deaths Reported at Day One of Hard Summer (2015)
'Bad Ecstasy' Rumors Are B.S.; Even Pure Molly Kills

Advertising disclosure: We may receive compensation for some of the links in our stories. Thank you for supporting LA Weekly and our advertisers.