Two persons were killed and two others injured when an iron ore-laden truck skidded off the road and overturned on the National Highway-16 in the Tangi area of Khordha district late on Tuesday night.The identity of the deceased was yet to be ascertained. As per reports, the truck was on its way to Balugaon from Kuhudi when mishap occurred. The driver of the vehicle lost control over the wheels following which it skidded off the road and overturned at Jaymangalpur Chhak. The driver and helper were killed on spot, as they got trapped in the badly mangled vehicle. Local police rushed to spot and sent injured for treatment to a nearby hospital.