Mexico City, August 11 a traffic accident occurred in central Mexico early that morning, killing 13 people and injuring more than 20, Mexican media reported on August 11. It was reported that the accident happened on the road between Mexico City and Toluca, the capital of Mexico. A bus suddenly lost control near a rest area, crashed into a roadside guardrail and overturned, causing 13 deaths and more than 20 injuries. The injured have been sent to hospital. At present, the specific cause of the accident is not clear.