Fowler said the first student who was questioned was the person seen going into a dorm and wearing a black hoodie. But after interviewing him, Fowler said, police released him from custody and do not consider him a suspect.

The second student was then questioned and took police to his dorm room, where the toy gun was found.

The gun was an engineering project the student built in class, the university said in a news release. Other students in the class had also built toy rubber band guns.

Fowler said police did not think there was any intention by the student who had the toy gun or the person who called police to cause a panic on campus.

Fowler said the initial safety alert went out after police got a call about 5 p.m. about someone in a black hoodie walking into Spring Hall, a campus dorm, with what appeared to be a gun. Spring Hall was quickly evacuated, he said.

While that evacuation was underway, police got a report of possible shots fired outside of Marchetti Tower East, a dorm a few blocks away.

"No students have been injured," Fowler said about 6 p.m. "No reports of any injuries."

He also said police found no evidence of gunfire.