Groton ― A 19-year-old student enrolled in a manufacturing program at the Ella T. Grasso Technical High School campus was arrested Tuesday after police said he threatened to “shoot up the school.”

Deveon A. Belk, of 111 Truman St., Apt. 5, in New London was charged with first-degree threatening and breach of peace in an incident that led to a lock down and late dismissal of the school.

State police said at about 2:05 p.m. Tuesday, a staff member told the school resource officer about a verbal threat allegedly made by the student.

Police said Belk, part of an adult apprenticeship program at the school, had been asked to leave the building by his teacher. He was heard making the threatening statement about returning and shooting up the school as he was leaving, police said.

With help from the City of Groton Police, state troopers found Belk in the area of Eastern Point Road and Benham Road, and he was taken into custody, state police said. Belk was no armed, police said.

“Out of an abundance of caution, troopers remained at the high school during afternoon dismissal,” state police said.

State police said there is no ongoing threat to students, school staff, or the public.

Belk was released on a $20,000 bond and due to appear Dec. 6 in New London Superior Court.