Mace, or a noxious substance similar to it, was discharged into a hallway by two West Babylon High School students on Tuesday, sending more than 30 people to the hospital and forcing the evacuation of students and staff, police and school officials said Wednesday.

“We are happy that we are bringing closure to this,” Superintendent Yiendhy Farrelly said at a news conference at the school Wednesday.

Outside, police finished their investigation and students and staff were allowed back inside for classes after a two-hour delay Wednesday morning.

Suffolk County police had received a call about “some type of fumes” at the school at about 11:50 a.m. on Tuesday.

About 34 students and staff were taken to hospitals with difficulty breathing and a burning sensation in the backs of their throats, officials said. Deputy Commissioner Tim Sini described the injuries as “minor respiratory symptoms.”

Sini declined to specify why the self-defense spray was discharged, but said it was not in the “context of an assault.” He said police had not determined whether arrests will be made.

Farrelly said in a statement posted on the district website that “The individuals responsible for this incident will face appropriate disciplinary actions.”

With Gary Dymski

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