Five people were killed and another three were seriously injured after a truck collided with a taxi and a bus in northwest China\'s Shaanxi Province on Tuesday morning, local authorities said. The accident happened at about 11 a.m. in Tongchuan City. Four people, including a boy, died at the scene. Another one died in hospital, according to the Tongchuan municipal government. The three injured are receiving emergency treatment in a local hospital. The cause of the accident is under investigation.