U.S. Army officials have ordered an investigation into the activities of two AH-64 Apache attack helicopters that flew over Saturday’s “No Kings” protest in downtown Nashville, then engaged in low-altitude maneuvers near the home of Kid Rock just north of the city.

The initial investigation appears to be focused, for now, on the maneuvers at the entertainer’s so-called “Southern White House” in the Nashville suburb of Whites Creek.

“Fort Campbell leadership is aware of a video circulating on social media depicting AH-64 Apache helicopters operating in the vicinity of a private residence associated with Mr. Robert Ritchie (also known as ‘Kid Rock’),” said a statement by Maj. Jonathon Bless, public affairs officer for the 101st Airborne Division.