CHARLES COUNTY, Md. (DC News Now) -- The Maryland Office of Attorney General (OAG) is investigating a deadly collision that involved a police vehicle in Charles County. Details remain limited; however, in a post on X on Tuesday, Dec. 3, around 7:13 a.m., Attorney General Anthony Brown said the Independent Investigations Division (IID) was on the scene of a crash near Route 301 and Port Tobacco Road in the La Plata area. Police investigating deadly crash in Prince George’s County Currently, it is unknown which police department vehicle was involved and who was killed in the crash. This is a developing story.