State police say they've arrested a man who attacked his roommate with a chain saw at the Schaghticoke Indian reservation in Kent.

The roommate was injured, getting a laceration to his upper left arm.

State police say the incident which began when 33-year-old Brian Donovan tossed a rock through the window of the house on Schaghticoke Road where he and 42-year-od Edward Harrison live.

Police say Harrison then attacked Donovan with the chain saw.

Both men have been arrested. Harrison is charged with second-degree assault while Donovan is charged with third-degree assault, criminal mischief, reckless endangerment and interfering with police.