This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

The three young people who died after attending the Hard Summer rave at the Auto Club Speedway near Fontana all died of Ecstasy overdoses, the San Bernardino County coroner said.

The second day of the Hard Summer rave at the Auto Club Speedway in Fontana on July 31, 2016. (Francine Orr / Los Angeles Times)
The second day of the Hard Summer rave at the Auto Club Speedway in Fontana on July 31, 2016. (Francine Orr / Los Angeles Times)

The official cause of death for all three was “acute MDMA toxicity,” referring to the formal name for the illegal drug Ecstasy, said supervising coroner investigator Mike Sutcliffe.

There have now been at least 28 confirmed drug-related deaths nationwide since 2006 among people who went to raves organized by Los Angeles-area companies. Fifteen have died in Southern California — seven in San Bernardino County and eight in L.A. County — and six in the Las Vegas area.

The three had attended the rave held during the last weekend of July, produced by a division of concert giant Live Nation, which was moved from the Los Angeles County fairgrounds in Pomona last year after two college students died of drug overdoses. This year’s Hard Summer saw record attendance.

Click here to read the full story on LATimes.com.