QUETTA - Four people, including a woman, were killed and six others wounded in a road accident in Sibbi Thursday. According to reports, a passenger van was on its way to Kotmandai from Sibbi when it fell into a gorge, killing four people on the spot and wounding another four. Two children were among the injured. According to sources, the accident took place after a tyre of the vehicle burst. The personnel of law enforcement agencies and rescue service rushed to the site and moved the dead and injured to hospital where the deceased were identified as Yar Muhammad, Samad Khan, Sabir Ali and Bibi Sakina. The local administration has started investigation into the incident.