[originaltext] At least 31 people, including 6 children were killed when a bu

At least 31 people, including 6 children were killed when a bus burst into flames after colliding with a tanker truck, which was carrying a flammable chemical in Pakistan. The accident occurred in heavy rain about 230kin north of the port city of Karachi, on the country’s main national highway. Police blamed poor visibility and slippery conditions caused by the rain.