Pakistani security forces declared an end to ethnic separatists’ seizure of a train carrying more than 400 people.

The Pakistani government, facing a widening security crisis in the country’s restive southwest, has given little indication it intends to negotiate with the militants.

Pakistani security forces are carrying out a rescue operation to free dozens of passengers taken hostage by separatist militants who hijacked their train in the southwest of the country on Tuesday. Here is a look at what happened,