DEVORE >> Despite a slightly lower attendance than the first day, officials said more people were arrested and hospitalized during the second day of the Hard Summer Music Festival in Devore.

Of the more than 37,500 people who attended the festival Sunday, 67 people were arrested at the festival, according to a San Bernardino County Sheriff’s Department news release. Of those arrests, 39 were made by California Alcohol Beverage Control for drug and alcohol violations. The other arrests were made by the Sheriff’s Department for “charges ranging from public intoxication, outstanding warrants, possession and sales of narcotics,” the news release said.

Thirteen people were hospitalized, the news release said. Sheriff’s spokeswoman Jodi Miller said drug and alcohol use, heat and dehydration were to blame.

On Saturday — the first day of the two-day festival — 40 people were arrested and six were hospitalized, sheriff’s officials said; more than 40,000 people attended that day. Most of the arrests were made for drug and alcohol offenses. The people who were hospitalized suffered from drug use, dehydration and injury, said Sheriff’s Department spokeswoman Cindy Bachman via email; five of them were released from the hospital by Sunday afternoon.

Miller said Saturday “was like a typical rave or (electronic dance music event),” in that “attendees were there to dance, express themselves and have fun.” There were very few “negative contacts” with deputies, she said.

Sunday “seemed like a more aggressive crowd,” she said.

“There were more assaults, disturbances and drug arrests,” Miller said. “Arrest stats were higher.”

On Sunday afternoon, deputies encountered an ecstasy pill that may have cotributed two two attendees getting sick, Miller said. Deputies were unable to confirm if the pill was the source. Deputies did not test the pills, so they were not able to determine what may have been in the mixture — Ecstasy pills typically consist of the drug MDMA and another drug.

The festival’s managers and deputies decided to issue an alert on the festival’s mobile app regarding the pill. The message warned of pills with a “blue shaped ghost” on them.