Almost 14 people were killed and 40 others were injured on Saturday when a suicide bomber ran his car in an election office in north-western Pakistan.

According to reports, the accident occurred after a meeting of former Prime Minister Benazir Bhutto’s party.

A security official said the blast occurred in Parachinar, in the area which borders Afghanistan, in the tribal region of Kurram in north-west of the country.

It came just two days before the elections which are to reinstate the democracy after eight years of military rule under President Pervez Musharraf.

It appeared as the victims belonged to the Pakistan People's Party, according to Mushtaq Hussain, an administrative official in the Kurram area, the Associated Press reports.

He said that almost 14 people were killed and 40 others were wounded.

Hussain said that the suicide bomber "rammed his explosive-laden car into the election office".

A party supporter who was at the scene, Zafar Ali, said: "Several of our party members are lying in a pool of blood. We are taking the injured and helping them into pickup vans to bring them to the hospital."

It’s wasn’t clear who was the one to blame for the blast.

The accident occurred in the last day of the campaign which was ruined by violence and fears of vote-rigging.

On Monday the elections will occur against a scenery where Islamic militancy is rising in Pakistan. Many of the candidates were told not to hold rallies.

These elections were postponed after the assassination of Bhutto, on December 27.