The University of Northern Iowa locked down its dormitories for about two hours Tuesday after a female student reported that her boyfriend planned to confront her with a gun.
Police surrounded Dancer Hall and told its 500 residents to remain in their rooms while they searched the building. Officials said the lockdown ended before 8 p.m. when the suspect, Todd Younk, 18, was arrested at his mother's home in Windsor Heights.
Younk was being held in the Polk County jail on Wednesday. The sheriff's office said he was charged with first-degree harassment. Bond was set at $10,000.
Jim O'Connor, a university spokesman, said the female student reported the threat to authorities, who then interviewed her to ensure there was a credible threat. The university issued an alert shortly afterward and locked down all 10 of its resident halls as a precaution.