MARSHFIELD, Mass. — Massachusetts police have arrested a 19-year-old man they say threatened to burn down the town and “take out” students at the local high school.

Police say parents called Wednesday night to report the threats made on Instagram by Andrew Lomuscio, a recent Marshfield High School graduate. Officers quickly located him, and he was involuntarily committed for a mental health evaluation.

He has been charged with threats to commit a crime, electronic threat to use a firearm to disrupt a school and threats to evacuate or disrupt a school. It could not immediately be determined if he has a lawyer.

He is being held without bail pending a dangerousness hearing.

WFXT-TV reports the Marshfield superintendent has issued a no-trespass order against the man.