SAN FRANCISCO (CBS SF) — Police responded to a report of a gunman on the campus of City College of San Francisco Tuesday morning.

The CCSF Facebook page said a fight among three students resulted in the campus police responding and the evacuation of the library after one student in the altercation said a gun was pulled on him.

CCSF said there was no active shooter situation and no one was injured.

San Francisco Police said the campus library was evacuated as a precaution after word there may have been a student with a gun in the library.

SFPD officers arrived and determined there was no shooting and no injuries.

Investigators are determining whether there was actually a gun on campus.

So far there have been no arrests and no one on campus is in danger, police said.