Several carriages of the Hazara Express overturned near Sahara railway station in Nawabshah, about 275km (171 miles) from the largest city Karachi. I filled my hands with water from this canal nearby and poured it on the faces of those who were unconscious, hoping they would regain consciousness," Naseer Ahmed said. In 2021, two trains travelling in Sindh province collided, killing at least 40 people and injuring dozens