Pakistan on Monday condemned the deadly blasts on the Delhi-Attari train as an "act of terrorism."
"We condemn this act of terrorism in which many precious lives have been lost. We deeply sympathise with the families of the victims who lost their lives," Pakistan Foreign Office Spokesperson Tasnim Aslam said in Islamabad.
She said preliminary reports indicated that many of those who lost their lives were Pakistanis.
Aslam said it was the responsibility of the Indian government to provide security for the train. "We expect the Indian government to conduct investigation into the incident and punish those responsible for this"".
Asked whether the incident would have any affect on the proposed visit of Pakistan Foreign Minister Khurshid M Kasuri to New Delhi on Tuesday, Aslam said "We do not want to prejudge the investigations. We expect India to conduct investigations and the Pakistan High Commission officials have been asked to visit the spot to help the victims and send a report".
Sixty-six people, including Pakistanis, were killed in an explosion on the special train in Deewana near Panipat last night.