Police arrested 68 adults and five juveniles for allegedly possessing or selling drugs at this weekend's annual electronic music festival "etd.POP 2010" at the Cow Palace in Daly City, and 11 people were hospitalized after apparently using tainted drugs at the festival, according to health officials.
Some of the people who were taken to various area hospitals may have suffered life-threatening complications from the drugs, health officials said.
Members of the San Mateo County Narcotics Task Force as well as the Daly City Police Department and other city, county, state and federal law enforcement agencies participated in the undercover operation that led to the dozens of arrests.
Similar events are often known for sales of illegal club drugs, prompting the "eBuy4" operation that targets drug dealers.
The event Saturday night lasted from 6 p.m. to 2 a.m. Sunday.
In addition to the arrests, police seized 800 Ecstasy tablets with a street value of $16,000, and other drugs including LSD, cocaine, methamphetamine and marijuana. About $5,000 in cash was also taken.
The 68 adults who were arrested at the event were booked into San Mateo County jail. The five juveniles were given a hearing date and released to parents or guardians.
Last year's 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.