At least five people, including three of a family, were killed, and five others injured in a head-on collision between an SUV and a truck in Odisha's Subarnapur district on Saturday, police said. The accident took place on Mahanadi Bridge early during the day when the 10 occupants of the SUV were returning home in Nimma village in Ullunda block from Kaudiamunda village, a police officer said.