Yale University On Lockdown, Gunman Confirmed

On Monday afternoon, Yale University confirmed that there was a gunman on their New Haven, Conn. campus. There have been no reports of gunfire, but students and staff have been advised to "shelter in place" until the threat is over. On the school's website, an emergency alert reads:

New Haven Police have received an anonymous call from a phone booth in the 300 block of Columbus Avenue (between Howard Avenue and Hallock Street) reporting a person on the Yale campus with a gun.

SWAT teams and police authorities are on campus and investigating the threat. At 11:02 a.m. Monday morning, all Yale students went sent a text that read: "Confirmed report of person with a gun on/near Old Campus. SHELTER IN PLACE. This is NOT a test." At 11:37, another message was sent out to the college community: "SHELTER IN PLACE/LOCKDOWN REMAINS ON CAMPUS. IF OFF CAMPUS, STAY AWAY."

The New Haven Independent newspaper alleges that a police radio indicated that cops were searching for an "older white man, balding, in a heavy overcoat." The paper also claimed that ambulances were racing towards the scene, though there are no reported injuries.