Yet another college campus has taken action as reports of a gunman on campus have prompted a shutdown.

Yale University, one of the top 3 institutions in the U.S., and an Ivy League school, has announced a lockdown on its New Haven, Conn. Campus after a man with a gun was reportedly seen nearby, according to UPI.

No shots have reportedly been fired and no one is currently in custody.

"There are confirmed reports of a person with a gun on campus on the Old Campus," an alert on the University's website said. "The shelter-in-place/lockdown continues."

The lockdown began after an anonymous caller reportedly called police and said his roommate was headed to the school with the intention of shooting others.

Teams from both the Yale and New Haven police forces, as well as state police, invaded the campus on an active search for the potential gunman, including room-to-room searches in dorms.

Students have been on Thanksgiving break from the school since Saturday with classes not set to resume until Dec. 2, but officials have warned anyone still remaining on the campus to take cover until the situation is under control and resolved.

Nearby Gateway Community college is also on lockdown.

Yale is not the only university to take precaution due to a reported shooter on campus in recent weeks. A Liberty University student in Virginia was killed in a dorm shooting on Nov. 19. Reports of a gunman on campus also shut down another Connecticut school earlier in November when Central Connecticut State University outside of Hartford reported a gunman on campus.