An airport police officer was arrested after law enforcement received reports that a man with a gun was standing on a rooftop overlooking a controversial Robert E. Lee statue that has been the site of recent protests.

Riley O’Shaughnessey, a 38-year-old police officer at Richmond International Airport, was charged on Saturday with a misdemeanor count of trespassing. Police first received a 911 call about O’Shaughnessey at about 6:30 a.m., when he was seen “on the roof of an unoccupied building overlooking the Lee monument,” according to NBC News.