SLIPPERY ROCK TWP — Slippery Rock University students’ revelry was cut short Saturday night when an off-campus pig roast turned raucous and rowdy, authorities said.

At least four people were hurt during the annual event at The Heights apartment complex on Route 173 in Slippery Rock Township.

Among the injured were two young women who were hit by an unoccupied runaway car, state police said. A man also landed in the hospital after he was clobbered on the head with a beer bottle.

Police made nearly a dozen arrests, mostly for drunken driving and public drunkenness, at the event dubbed “Pig Roast 2K15,” which drew an estimated crowd of up to 3,000.

An Erie man driving to the party was jailed after troopers found him with numerous baggies of suspected marijuana that he planned to sell, police said.

“It got out of control so we ended up shutting it down,” said Cpl. Timothy Morando, who was among 15 state police officers called to the keep the peace and quell trouble.

The event, which is not affiliated with Slippery Rock University, has grown in popularity among SRU students and out-of-towners over the years. The gathering marks the pending end of the academic year.

“There have been problems in past years,” Morando said, “but (Saturday) was much worse. Residents, business owners and the community does not need this type of activity. It shouldn’t be tolerated.”

SRU spokesman Rita Abent said this morning that she was not immediately aware of any issues at the pig roast. She said the university was waiting to speak to state police before making any comment.

A message left at The Heights’ office was not returned.