UPDATE 5:15 p.m.: SOUTH ORANGE, NJ -- A police investigation was unable to substantiate the anonymous threat received today at Seton Hall University that put the campus on heightened alert for several hours.

An email sent by the university at approximately 4:50 p.m. stated that the normal campus entrance procedures had resumed at 4:45 p.m. The secondary entrance, off of Ward Place, was temporarily closed during the investigation. 

"Seton Hall University wants to acknowledge that the South Orange Police Department took this threat very seriously and that the entire university community is appreciative of their effort," the email read.

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An unidentified individual called university public safety around 11 a.m. and made a threat, according to Laurie Pine, a Seton Hall spokeswoman. The nature of the threat has not been disclosed.

“From our limited information, this is not a bomb threat,” Kevin Lynch, public information officer with the Essex County Sheriff’s Office said earlier. “We are on scene to lend SOPD a hand.”

During the alert, all cars were inspected by public safety officials before they entered the campus at the main entrance on South Orange Avenue. Drivers entering were asked for identification, and Seton Hall IDs were swiped through a card reader.

Students and staff were notified of the situation via email at 11:43 a.m., and a second email with an update on the situation was sent at 1:24 p.m.

University officials urge the campus community to remain vigilant and to report any suspicious activity to authorities immediately.

The reporter is a student participating in hyperlocal journalism partnership between The Alternative Press and Seton Hall University's Department of Communication & The Arts.