(Radio Iowa) – Dubuque Police say a former Clarke University student has been arrested after making a threat that prompted the closure of Clarke’s Dubuque campus earlier today (Monday). Just before 8 a.m., Clarke University announced the campus was closed due to an active social media threat. Police have arrested 23-year-old Rashaud Colbert in a southwestern suburb of Chicago. He’s been charged with a threat of terrorism, a felony.

The Clarke University campus reopened shortly before noon. Clarke is a private Catholic college with an enrollment of about 12-hundred students and more than 320 professors and staff.