Schools in Hackettstown reopened Tuesday after an unfounded threat forced officials to keep students inside classrooms for about four hours.

Police officers are stationed in Hackettstown's public schools and Police Chief James Macaulay spoke to students and teachers over the public address system.

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Officials imposed lockdowns after a man called the Warren County communications center multiple times on Monday morning and claimed he was armed with an assault rifle in the woods behind Hackettstown High School.



The town's schools and Centenary College kept students inside while police searched the area.

The search failed to uncover the man or any weapons.
(Copyright 2012 by The Associated Press.  All Rights Reserved.)