COLLEGE PARK, Md. (DC News Now) -- Prince George's County police are investigating after images of graffiti at Muskogee Playground in College Park circulated on social media. On Monday morning, the Prince George's County Police Department (PGPD) told DC News Now that it was investigating the graffiti, which appeared to have the number 56 spray painted around the park. Posters of VP Kamala Harris, glass of Metro bus stop vandalized in Northwest DC Graffiti at Muskogee Playground in College Park. (DC News Now)Graffiti at Muskogee Playground in College Park. (DC News Now)Graffiti at Muskogee Playground in College Park. (DC News Now) Police did not provide any further information. The investigation is ongoing.