Princeton gives 'all clear' signal after shots reported

PRINCETON, N.J. (AP) — Princeton University Police have given the "all clear" signal on the New Jersey Ivy League campus after reports of shots prompted the school to cordon off a historic building on campus.

Princeton police searched Nassau Hall and found nothing, according to the university's Twitter feed.

Police cordoned off Nassau Hall earlier Tuesday after public safety officials got a report of gunshots there. No injuries were reported.

Nassau Hall is Princeton's administrative center. Princeton's website calls Nassau Hall the centerpiece of its campus and a university and national landmark. It says it moved classes from Newark to Nassau Hall in Princeton when the building was completed in 1756.