Green paint has been found splattered on another Washington landmark the National Cathedral.
The paint was discovered Monday afternoon covering the organ console in Bethlehem Chapel the oldest portion of the cathedral.
It was still wet, leading officials to believe the vandalism had just occurred.
U.S. Park police are also investigating the discovery of green paint on the statue of Joseph Henry, outside the headquarters of the Smithsonian Institution.
Henry was the Smithsonian's first secretary.
Park police are not sure whether the vandalism is connected.
On Friday, green paint was found on the Lincoln Memorial on the National Mall.