CHICAGO (CBS) — Police at Northwestern University have canceled a lockdown Wednesday afternoon after there were reports of shots fired and a person with a gun on campus.

Police later determined the 911 calls and reports were a hoax. Police said the 911 call came from outside the Rockford area.

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“We are prepared to call this incident a hoax,” Evanston Police Cmdr. Ryan Glew told reporters.

(Source: Northwestern University)

Evanston police initially said they were investigating reports of shots fired near Emerson Street and Maple Avenue. The university said there were reports of a man with a gun at Engelhart Hall, a graduate student dormitory. A call indicated that a person has shot his girlfriend.

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Later, at 3:11 p.m., Evanston police said they searched the original area of the reported shooting and did not find anything. However, they said officers are still searching the area.

Shortly before 4 p.m., the university partially lifted its campus lockdown. Northwestern instructed those in Englehart Hall to remain behind locked doors; those not in the area no longer needed to stay behind locked doors.

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Police respond to reports of a gunman on Northwestern’s campus. (Credit: Will Tveit)