KARACHI, Aug 12: Two persons died in road accidents in different parts of the city on Saturday. Police said that two motorcyclists were knocked down by a 2-D route bus at KDA Chowrangi, North Nazimabad. One of them, Mohammad Hafeez, 40, died on the spot. In a hit-and-run accident, an 80-year-old pedestrian died in Mauripur.