A police officer who was involved in clearing protesters from a Columbia University administration building earlier this week fired his gun inside the hall, a spokesman for District Attorney Alvin Bragg바카라 게임 웹사이트�s office confirmed Thursday.No one was injured, according to spokesman Doug Cohen, who said there were other officers but no students in the immediate vicinity. He said Bragg바카라 게임 웹사이트�s office is reviewing the incident. He did not provide additional details.The New York Police Department did not immediately respond to a request for comment.The gunfire came as police officers stormed Hamilton Hall Tuesday evening, where pro-Palestinian protesters had been barricaded inside for more than 20 hours. Video showed officers with zip ties and riot shields streaming through a second-floor window. Police had said protesters inside presented no substantial resistance. More than 100 protesters were taken into custody.The demonstrators had seized Hamilton Hall early Tuesday, ramping up their presence on the campus from a tent encampment that had been there since April 17.The encampment was one of the earliest on college campuses.Despite more than 100 arrests on April 18 and the clearing of the tents, the protesters defied threats of suspension to return to the encampment. Then they escalated their demonstration by occupying Hamilton Hall, an administration building that was similarly seized in 1968 by students protesting racism and the Vietnam War.