A police officer in McKinney, Texas, was placed on administrative leave after a video surfaced showing him wrestle a 14-year-old girl to the ground and point his gun at two young men.

The officer was one of 12 who responded to reports of a disturbance among a group gathered at a private community pool in the Dallas suburb, said Greg Conley, chief of the McKinney Police Department. Residents said some of the youths were fighting and refusing to leave, according to Mr. Conley.

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