PRINCE GEORGE'S COUNTY, Md. (DC News Now) -- Police in Prince George's County are investigating after a vehicle hit and killed a man in Marlow Heights on Saturday. According to the Prince George's County Police Department (PGPD), at around 8:50 p.m., officers responded to the 4400 block of St. Barnabas Road for a pedestrian collision. There, they found a man in the roadway. He died there. 3-year-old child dies after being hit by truck in Chantilly Police said the driver did not remain on the scene, and investigators are working to determine what caused the crash. Anyone with information should contact Crime Solvers online or submit a tip using the P3 Tips app.