UMERKOT: A couple was killed and their son was critically injured when the tri-wheeler they were travelling in was hit by a speeding car on Mirpurkhas-Umerkot road on Saturday. The deceased were identified as Ramesh Kumar and his wife Ms Samjhoo. They, along with their son, Dilmurad, were transporting fodder by the tri-wheeler when they met with the accident. The victims were taken to the Umerkot District Headquarters Hospital, where doctors referred Dilmurad to a major hospital in Hyderabad due to his critical condition. The family was resident of Lal Malook Oad Colony, Umerkot. Police impounded both the vehicles involved in the accident.