Ambulance explosion in southern Pakistan left 9 dead An explosion of an oxygen cylinder in an ambulance in the province of Sindh in Pakistan killed 9 people. Pakistani media announced that this fatal incident took place this morning in the city of Tharparkar located in the province of Sindh in the south of the country. The explosion occurred while the oxygen cylinder was being placed inside the ambulance, during which nine passengers were killed, including two patients and health workers, and four others were injured.