VARANASI, June 25 -- A man and his six-year-old son were killed after being run over by a tractor-trolley near Bairahi village under the Jamalpur police station area of Mirzapur district on Tuesday evening, police said. According to police, Manish ,38, was riding a motorcycle with his son when he attempted to overtake a tractor-trolley. During the overtaking attempt , the motorcycle came under the vehicle's wheels, resulting in the deaths of both father and son on the spot. Jamalpur station house officer Amit Kumar said the tractor driver fled the scene after the accident. The bodies have been sent for post-mortem examination....