Investigators scoured the wreckage on August 7 of a weekend train derailment that killed at least 34 people, the latest deadly crash to hit Pakistan's antiquated railway network.
More than 1,000 passengers were aboard the Hazara Express when it came off the tracks in a flat, rural part of Sindh province near Nawabshah, around 250 kilometres (160 miles) by rail from the southern port city of Karachi.
It was winding its way north on a 33-hour journey to Havelian in Khyber Pakhtunkhwa province when disaster struck near Sarhari around lunchtime.
