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Teen arrested after threats found at Smithtown H.S. East

A threat against the junior prom at Smithtown High School East prompted extra security measures Friday and led to the arrest of a 15-year-old girl.
The school's principal said threatening statements were found written in student bathrooms.
The threats apparently referenced the junior prom set for Friday night at the school.
Backpacks were searched in the morning and officials announced extra security on hand for the prom.