A bonfire party on Ocean Beach turned violent last week, with one teenager reportedly stabbed six times.

Police were called to the Great Highway at Judah Street at about 11:45 p.m. Saturday, June 16, the San Francisco Examiner reports. According to a female witness whom the Examiner did not identify, three people were beating the teenager, who reportedly had been drinking.

A short time later the witness and four male partygoers took the victim off the beach to the street. It was only after they had called police that the group noticed the victim’s six stab wounds.

Two suspects witnesses described as teenagers left the scene of the incident but were stopped by San Francisco police officers, according to the Examiner. The two were turned over to the U.S. Park Police, which is responsible for law enforcement on the beach itself because Ocean Beach is part of the Golden Gate National Recreation Area, a branch of the National Park Service.

The suspects, whose identities were not released, were booked into County Jail for resisting arrest. They might face stiffer charges pending the results of an ongoing investigation, U.S. Park Police spokesman Howard Levitt said.

Due to the probe, Levitt said, few details were being released about the incident.

Further information on the suspects and the condition of the victim was not immediately available.