Three wounded in US Tennessee University shooting

Three people have been shot and one is reported to be critically wounded at Tennessee State University in Nashville, US police say.

The entrance to the university is reported to have blocked off. There is no indication that an attacker is still active, AP news agency reports.

The gunfire is reported to have started on Thursday night.

The latest incident comes a week after three people were wounded by gunfire at an off-campus party near the college.