|Pakistani soldiers patrol on road ahead of parliamentary elections in southern Pakistan's Hyderabad, May 6, 2013.(XINHUA/Jan Ali)|
Local media gave higher figures of the casualties in the blast but there was no official confirmation reported by the media.
According to the reports, the bomb blast took place in the public gathering of a religious-political party of Jamiat Ulema-e- Islam-Fazl (JUI-F) in the Makhrani area of Kurram Agency, one of Pakistan's northwestern tribal regions.
The Medial Superintendent of Agency Hospital of the area said that at least six bodies and 25 injured were shifted to the hospital.
According to a hospital official, the number of causalities could rise as many people were in critical condition.
Rescuers and security forces rushed to the site and shifted the bodies and the injured to the hospital.
At the time of the blast, hundreds of people were present to listen to their leaders contesting for the country's May 11 elections.
The bomb exploded with a big bang at the conclusion of the public gathering near the stage where two JUI-F leaders were sitting but they remained unhurt in the attack.
The nature of the blast was not confirmed yet but a higher officer said that the blast was conducted with an improvised explosive device.
No group or militant organization has claimed responsibility for the attack yet.
Editor: Yang Yi