Rescue workers used wire cutters Thursday to cut through the twisted, charred wreckage of two trains that collided at a rural station in eastern Punjab, killing at least 35 people and injuring 100 others.
The Rohi Express bound for Islamabad was traveling at top speed when it slammed into another train at Rustam Sargana, 180 miles southeast of Islamabad, shortly before midnight Wednesday, the state-owned Associated Press of Pakistan said.
Prime Minister Nawaz Sharif ordered an immediate inquiry into the accident. At the site, investigators were taking statements from witnesses to try to determine what happened.
The Rohi Express apparently was supposed to be switched on to a parallel set of tracks. Visibility at the time also was extremely poor because of heavy fog, reports said.