A San Diego woman and two others who died at a music festival in San Bernardino County overdosed on the drug Ecstasy, according to the San Bernardino County Coroner's Office.
The coroner said 21-year-old San Diegan Alyssa Dominguez; 22-year-old Derek Lee, of San Francisco; and 22-year-old Roxanne Ngo, of Chino Hills; were each hospitalized and died after having attended the HARD Summer Music Festival in Fontana on July 30-31.
The coroner classified the manner of death for Dominguez, Lee and Ngo as accidental, and the deaths were due to "acute methylenedioxymethamphetamine (MDMA) toxicity."
According to the coroner's office, the deaths were not believed to be related.
