A truck carrying soldiers and their families overturned in eastern Uganda, killing 72 people and injuring 40 others, the army spokesman said Monday. The truck crashed on Sunday after hitting a concrete barrier on the roadside 250 kilometers northeast of the capital, Kampala, spokesman Maj. Felix Kulayigye said. He said the death toll could rise. "We are trying to determine the cause of the accident," Kulayigye said, adding that it was not clear how many passengers the truck was carrying. In Uganda, trucks with makeshift benches are the usual means of transport over long distances. Road accidents are common where poor road conditions coupled with badly maintained vehicles make for precarious driving conditions. The police estimate that up to 2,000 people die on Uganda's roads each year.