The train, which departed from Rawalpindi, was passing through Dera Murad Jamali district of the restive Balochistan province when the blast occurred.
Media reports had earlier suggested that it was a suicide attack but state-run Radio Pakistan said it was a remote control bomb blast. More than 10 people were also injured when five bogies of the train were derailed.
Security personnel reached the site and cordoned off the area as a probe into the incident went underway.
Minister for Railways Khawaja Saad Rafiq has termed the attack on Jaffar Express as a cowardice and barbaric act.
Seven people have been killed and more than 10 injured in the bomb blast, Rafiq said. He feared that the death toll can rise as rescue efforts are still underway.
Rafiq said that relief trains have been sent from Sukkur and Sibi, while ambulances and police vans are also busy in shifting the injured to the hospitals.
On 15 August, suspected militants attacked a Rawalpindi-bound passenger train with rockets in Bolan district.
At least two persons were killed and 32 others were injured in the militant attack.
Media reports had earlier suggested that it was a suicide attack but state-run Radio Pakistan said it was a remote control bomb blast. More than 10 people were also injured when five bogies of the train were derailed.
Security personnel reached the site and cordoned off the area as a probe into the incident went underway.
Minister for Railways Khawaja Saad Rafiq has termed the attack on Jaffar Express as a cowardice and barbaric act.
Seven people have been killed and more than 10 injured in the bomb blast, Rafiq said. He feared that the death toll can rise as rescue efforts are still underway.
Rafiq said that relief trains have been sent from Sukkur and Sibi, while ambulances and police vans are also busy in shifting the injured to the hospitals.
On 15 August, suspected militants attacked a Rawalpindi-bound passenger train with rockets in Bolan district.
At least two persons were killed and 32 others were injured in the militant attack.