A 22-year-old boy died in a road accident at the Signature Bridge in the wee hours of Thursday, and three of his friends were injured. The bridge spans the Yamuna River at Wazirabad section, connecting Wazirabad to East Delhi. The exact cause of the accident is yet to be ascertained but over speeding is believed to be the reason behind the incident. Mohit was driving the car. He reportedly lost control of the car.