HYDERABAD: At least six people were killed when a bus turned turtle on Tuesday near Miani Forest between Hyderabad and Matiari, injuring more than 30 others in the process. Police officials and passengers on spot said that the bus, travelling from Bahawalpur to Karachi, upturned when it went out of control as a result of over speeding. Rescue operations were carried out by the police and Edhi volunteers as they immediately rushed to the incident area after the news spread. The medical team is treating the injured, five of which are said to be in critical condition.