New Delhi:A 27-year-old Delhi Traffic Police constable was Sunday crushed to death by a speeding truck, police said. Police said the driver, identified as Pramod Singh, of Haryana's Bhiwani, was arrested from the spot. "The incident took place at 4 p.m., when the constable, Ravinder, a resident of Police Colony in Narela, was on routine traffic movement on his motor bike at Ashok Vihar's traffic circle. A speeding truck hit him from behind and crushed him. He was taken to a nearby hospital where doctors declared him dead," said Deputy Commissioner of Police, Northwest, Vijay Singh. A case was registered against the driver in Mahendra Park police station.