Updated

A former leader of a black student group has admitted tweeting anonymous threats against fellow black college students in New Jersey last fall.

Kayla McKelvey pleaded guilty Monday to creating a false public alarm. The former Kean University student faces a possible sentence of 90 days in jail plus restitution.

Prosecutors said the 25-year-old McKelvey tweeted threats from a campus library because she wanted more people to attend a November 2015 rally on racial issues. She then returned to the rally to tell people about the threats.

Last week, a judge rejected McKelvey's request to participate in pretrial intervention that would have spared her jail time.

The state will also recommend that McKelvey pay $82,000 to cover the police response and heightened security caused by the threats.