LAHORE - Two young motorcyclists including a police constable lost their lives and many others wounded critically when they were performing stunts on their motorbikes here in different parts of the City on early Sunday, police sources said. Nasir Hussain, 22, a police constable and his friend, Zameer-ul-Hassan, 24, a factory worker, were killed when they were doing one-wheeling at Canal Road while another two youngsters sustained severe injuries in a similar incident at The Mall. The police said that Nasir and Zameer-ul-Hassan were doing one-wheeling on their motorcycles at Canal Road when their two-wheelers smashed into a truck near Gulzar underpass in Gulberg police area on Sunday morning. Both the motorcyclists sustained severe head injuries and were rushed to the Jinnah Hospital in critical condition where they were pronounced dead. A traffic warden Mohammad Ahsan who witnessed the road mishap, told reporters that they were doing one-wheeling when their motorcycles smashed into a truck near the underpass. Another eyewitness told reporters at the crime scene that they were performing stunts on their motorcycles when they lost the control and their bikes bumped into the truck, resulting their on-the-spot death. The police officials reached the spot and handed over the bodies to their families. Reportedly, Nasir Hussain, an employee of a local newspaper, was the resident of Ghazi Road Ichra while his friend Zameer-ul-Hassan was also residing at Gunj Buksh Road in the same locality. The victim families refused to talk to the reporters in this regard and also stopped the photographers from taking pictures of the dead. The police sources further said that both the youth were coming from Jinnah Hospital at Canal Road when the road mishap took place. Rescue (1122) officials reached the spot and shifted them to the Jinnah Hospital where doctors pronounced them dead. Meanwhile, two young motorcyclists were wounded seriously when they were performing stunts on their two-wheelers near Fortress Stadium on Sunday morning, police said. The sources said that Zahid and Amir were riding their motorbikes on the back wheel when their motorcycles slipped and rammed into the footpath. They sustained severe injuries and were rushed to a nearby hospital. The rescue workers said that legs and arms of both the young motorcyclists were fractured and they were being provided medical treatment in critical condition. It is worth mentioning that over two-dozen youngsters lose their lives while performing one-wheeling every year here in the provincial metropolis particularly on the occasion of Independence Day and new year. The police officers are of the view that it is the responsibility of the parents to keep a check on activities of their children and to educate them about the deadly sport. They said that only the police crackdown against two-wheelers could not stop the youngsters from falling victim to the deadly sport.