Underage teenagers smuggled in liquor and possibly drugs to a Jones Beach concert on Wednesday, landing 14 of them in a hospital, state parks officials said.

The Nassau University Medical Center treated the 14 intoxicated teens Wednesday night, according to the New York State Office of Parks, Recreation and Historic Preservation.

Summonses were issued to another 46 of the thousands of teens attending "The Boys of Zummer Tour" at the Nikon at Jones Beach Theater that featured rockers Fall Out Boy and rapper Wiz Khalifa.

Nine of the 11 teens arrested were charged with marijuana possession, a parks official said. One arrest was for driving while intoxicated and another was for attempted assault of a security guard, the official said.

"As is our standard practice, we will review the incident and discuss with the venue operator, Live Nation, measures to improve the safety of concertgoers," said Dan Keefe, a parks spokesman.

A Live Nation official had no immediate comment.

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Troy Caupain, a state parks police officer who serves on the PBA board of directors, described Wednesday night as a chaotic scene at a news conference Thursday morning outside the theater. "It was just madness."

He was one of the officers stationed at the concert that drew 13,000 fans and was opened by Long Island rapper Hoodie Allen.

Some teenagers brought water bottles filled with clear alcohol onto the grounds, drank too much, and got sick, he said. Some were using marijuana, the officer said.

The first-aid station at the venue proved inadequate, Caupain said. "They were overrun. It was a MASH unit."

Keefe said: "The safety of our visitors is state parks' highest priority. A full contingent of park police were assigned in advance of the concert and vigorously enforced underage drinking laws." Previous Nikon concerts also have been marred by intoxicated teens.

In 2012, at least 20 drunken teenagers were taken to the hospital ahead of a performance by Wiz Khalifa.

Four years before that, there were numerous fights at an O.A.R. concert; 24 minors landed in the hospital with alcohol poisoning, and about 100 summonses were issued for having beer in the parking lot before the performances.