Schools in Montclair, New Jersey are closed Monday due to a security concern, district officials say. Interim Superintendent Damen G. Cooper posted a message on the district's website saying all schools in the district will be closed for the day.

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,

All public schools in Montclair, New Jersey, closed on Monday because of what the school district called a "security concern" from a "potential threat." The district did not share details of the threat, but said on its website that it learned of the potential threat on Sunday evening and contacted local police.