The University of North Carolina has given the “all clear” after a campus lockdown over a report of an armed person on campus. The lockdown was in place for more than an hour. Students were told to “go inside now” and avoid windows. Details on what led to the lockdown are unknown. The hospital on campus said that it didn’t know of any injuries related to the lockdown or what caused it. UNC’s media relations department did not immediately respond to email and phone messages seeking comment.