Seventeen people died and four others were injured in a multiple-vehicle crash in Jiangxi Province Saturday morning, police said. A semi-trailer truck rear-ended another and tumbled over and skidded into the opposite lane on the Shanghai-Kunming expressway at around 4:30 a.m. The truck was then smashed into by a lorry, which rolled after impact and slammed into a passenger mini-bus, Xinhua quoted traffic police with Jiangxi Public Security Department as saying. Twelve people, including nine in the mini-bus, died at the scene. Five others died in hospital after treatment failed, police said. Nine of the 17 deceased have been identified. Four children in the mini-bus and the bus driver have been confirmed dead, according to the traffic police. Two people were hospitalized and are in a stable condition. Two others suffered minor injuries. The truck that rear-ended another one was suspected of being overloaded. And its driver was allegedly fatigued, said Yang Jianyun, a traffic policeman with Jiangxi Public Security Department. The mini-bus was overloaded with 13 people on board, including four children. It was also suspected of speeding, according to Yang. Police are further investigating the crash.