Threatening note forces St. Peter's College lockdown

The doors at St. Peter?s College in Jersey City were locked down as a security measure Wednesday after a threatening note was found in a campus building.
School officials say the action was taken around 10:42 a.m. after a handwritten note regarding possible violence was found taped to a wall inside a campus building. Emergency alerts were sent to students and staff through e-mails, text messages, cell phones and the school?s Web site within minutes of the decision to close the campus.
Police descended on the campus and blocked the school?s entrances to prevent anyone from entering or leaving. The lockdown was lifted around 3 p.m. following a search of the campus. No potential dangers were discovered during the search.
The alert system was established in the wake of last year?s shootings at Virginia Tech. A school spokesperson says this is the first time the message system has been used at the school.
Police are still trying to determine who posted the threat. School officials say surveillance tapes will be reviewed during the investigation process.
AP wires contributed to this article.