Metro

Report prompts lockdown at Yale

Police responded on Monday to an anonymous telephone call reporting a gunman on Yale’s campus in New Haven.
Arnold Gold/New Haven Register/Associated Press
Police responded on Monday to an anonymous telephone call reporting a gunman on Yale’s campus in New Haven.

Yale University’s campus in New Haven was locked down for more than six hours Monday due to reports of an armed person in the area, but an intensive search by law enforcement did not find a gunman, according to the school.

The New Haven Police Department received an anonymous call placed from a phone booth off campus around 9:48 a.m., claiming the caller’s roommate had a gun on the Yale campus, a college official said. The caller then hung up.

“The call was cut short by the caller so they didn’t provide more information,” said officer David Hartman, a spokesman for the New Haven police.

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After an alert was sent to the Yale community, a university employee said she saw a man with a rifle walking on Old Campus, wrote Yale’s vice president, Linda Koch Lorimer, in a schoolwide e-mail. The person the employee saw appears to have been a police officer.

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Police are attempting to track down the person who made the call, said Lorimer. The call came from a phone booth in the 300 block of Columbus Avenue, roughly a mile from campus.

“If it was a prank call that started this chain of events, the authorities intend to prosecute the individual to the fullest extent of the law,” Lorimer said in the e-mail.

At 3:30 p.m. the lockdown was lifted for Calhoun College. The campuswide lockdown was completely lifted at 4:40 p.m., according to a Yale alert.

Hartman said New Haven police were working with Yale police; the FBI; the Bureau of Alcohol, Tobacco, Firearms and Explosives; the Connecticut State Police; and other agencies.

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Yale students were dismissed for their fall recess Saturday, according to the university’s academic calendar. Classes are to resume on Dec. 2.

“I want to underscore our collective thanks to the superb mobilization of the Yale, New Haven, and State Police, and the FBI, as well as Yale’s own emergency response team,” wrote Lorimer.

Derek J. Anderson can be reached at derek. anderson@globe.com. Jasper Craven can be reached atjasper.craven@globe.com.