Students in Montclair, New Jersey will be back in the classroom Tuesday, after a threat forced the entire district to be closed Monday.Police said one man is now in custody after making an online threat,

All schools in New Jersey’s Montclair School District were closed Monday because of a social media threat directed at a specific staff member, according to Montclair police. Law enforcement officials believe the threat came from a staff member who is currently on administrative leave,

Public schools throughout Montclair, New Jersey were closed Monday “due to a security concern,” district officials said, though by midmorning the threat had been “neutralized.” “Late yesterday evening,