ABERDEEN, S.D. (AP) — Authorities say no gun has been found in what police earlier said was a shooting at Sanford Aberdeen Medical Center.

Aberdeen police say officers responded to a report of an active shooter in the hospital shortly after 9 a.m. Thursday. Capt. Eric Duven says medical staff reported hearing three shots fired in a patient's room. The man was arrested.

Police now say no gun was found in the patient room and that the staff likely heard the suspect banging on something repeatedly, not gunfire. Staff say the man was being belligerent with them prior to the incident.

One officer was injured while taking the 54-year-old Webster man into custody.

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Information from: Aberdeen American News, http://www.aberdeennews.com