Minister for Railways Sheikh Rashid Ahmad says targeting trains and passengers is a dastardly act of terrorists that needs to be condemned.
In a statement, he said the state will deal with terrorists with iron hands.
Sheikh Rashid said relief and rescue operation continues at the site of the blast.
He said patrolling of rail tracks will be made effective in cooperation with law enforcing agencies.
Meanwhile, CM Balochistan Mir Jam Kamal Khan has also strongly condemned the terrorist attack.
In a condemnation message, Jam expressed heartfelt grief and sorrow over the loss of precious lives in the incident.
The Chief Minister also instructed the concerned officials to further beef up security of all railway tracks and highways leading to different areas of the country.