A gunman wounded at least three people in a shooting in the library of Florida State University (FSU) in Tallahassee before police shot him dead, authorities said Thursday.
Mary Coburn, vice-president of student affairs at the university, told reporters that FSU police shot and killed the gunman after he refused to lower his weapon.
There was no immediate word on the identities of those wounded, nor that of the shooter.
The university issued an alert about a "dangerous situation" on the campus shortly after midnight, instructing students to "seek shelter immediately".
Several hours later, the university announced that the area was safe.
Neither the FSU police nor the city police have provided further details on the incident.
Florida State University is one of the largest in the state with about 40,000 students in 16 centres in Tallahassee, the state’s capital.