Officials and locals gather around the compartments of Doon Express, a passenger train which derailed in Jaunpur, Uttar Pradesh (AP Photo / Rajesh Kumar Singh).

Indian policemen look through the window of a passenger train which derailed in Jaunpur, Uttar Pradesh (AP Photo/Ashish Srivatsava).

A woman pleads to journalists after her two sons went missing, who were traveling in Doon Express, a passenger train which derailed in Jaunpur, Uttar Pradesh (AP Photo/Rajesh Kumar Singh).

A volunteer extends a helping hand to a trapped passenger inside a fallen compartment of Doon Express (AP Photo/Rajesh Kumar Singh).

Injured Mohammad Sameer, 21, who was traveling in Doon Express, is treated at a local hospital (AP Photo/Rajesh Kumar Singh).

Officials inspect the wreckage of the Doon Express, a passenger train which derailed in Jaunpur, Uttar Pradesh (AP Photo/Rajesh Kumar Singh).

Officials and locals gather around the fallen compartments of Doon Express, a passenger train which derailed in Jaunpur, Uttar Pradesh (AP Photo/Rajesh Kumar Singh).