JONES BEACH, N.Y. (PIX11) – An 18-year-old was arrested as 300 teenagers descended onto Jones Beach on Thursday during their "senior skip day," according to the Nassau County Police Department.

Police said Kyle Thomas is accused of showing what appeared to be a gun in his waistband as officers tried to disperse the crowd. Fights broke out between the teenagers, who are students of schools in Nassau County and Queens, according to authorities.

Police said at least four people were injured.

In New Jersey, lawmakers are working to crack down on large public fights at area beaches. More than 70 people were arrested after a rowdy Memorial Day weekend in Seaside Heights, according to authorities.

The Jones Beach crowd isn’t the first “senior skip day” that has turned violent on Long Island.

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