XI'AN - 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 am 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.