The Bolivian police announced Sunday that at lease 38 people were killed and 25 wounded in a serious traffic accident Saturday in the south of the country, said reports from the Bolivian administrative capital of La Paz.

The tragedy occurred when an overloaded bus went out of control on the road connecting Potosi with Tarija, the capitals of Potosi and Tarija departments respectively. It plunged into a valley of 300 meters deep beside the road.

Preliminary investigation showed that overload, speeding and foggy weather were major factors leading to the accident.

Source: Xinhua