1 Dead, 7 Ill from Tainted Drugs at Calif. Rave

Authorities are awaiting autopsy and toxicology results after a man died and at least seven other people were hospitalized after apparently taking tainted drugs at a suburban San Francisco concert.

Five of the seven hospitalized were in critical condition Monday, while two were in stable condition.

Daly City police say 23-year-old Anthony Mata of Santa Clara died Sunday from a suspected drug overdose at a San Francisco hospital. He and the others fell ill after attending Saturday's "POP 2010: The Dream" music festival in Daly City.

Capt. Cory Roay says Mata may have been under the influence of Ecstasy and methamphetamine. But he says the symptoms are not consistent with a normal Ecstasy overdose.

"They are actually much more serious and life-threatening."

Roay says investigators are still trying to determine who supplied the tainted drugs.

CBS station KPIX reports that police were originally concerned about reports that Mata suffered head trauma, but staff at San Francisco General Hospital said the head injury was insignificant, Morena said. Doctors determined Mata died of a drug overdose.

Officers arrested 68 adults and five juveniles for allegedly possessing or selling drugs at the annual music festival on Saturday, KPIX reports. The event lasted from 6 p.m. Saturday to 2 a.m. Sunday.

Members of the San Mateo County Narcotics Task Force and the Daly City Police Department joined other city, county, state and federal law enforcement ets with a street value of $16,000, and other drugs including LSD, cocaine, methamphetamine and marijuana, KPIX reports. About $5,000 in cash was also taken, officials said.

Staff at county hospitals were concerned festival goers might have taken tainted drugs at the festival after several patients showed up exhibiting symptoms inconsistent with normal ecstasy overdoses, Morena said.

Samples of the drugs were taken to a toxicologist at San Francisco General Hospital Sunday night for emergency testing, Morena said.

"They worked on them all night, but I haven't heard the results," Morena said Monday morning.

The two people in stable condition told police they don't know any of the other patients, and said neither purchased their drugs at the music event, KPIX reports.

Last year's electronic music event netted the arrest of 76 adults and three juveniles, as well as the seizure of 901 Ecstasy tablets, marijuana, methamphetamine and more than $5,000 in cash, officials said.