A suicide bomber has killed ten people, including an election candidate, and wounded 13 others in Pakistan's North Waziristan region.
The attacker drove a car laden with explosives into the candidate's convoy as it headed to a rally ahead of general election due in a week's time.
Police say there was no claim of responsibility for the bombing in the village of Aidak, but it has fuelled fears for security ahead of Pakistan's 18 February elections.
The attack follows a suicide bombing that killed 25 people on Saturday at an election rally in the northwestern town of Charsadda.
Election campaigning has so far been sparse in Pakistan due to government warnings of attacks on rallies.
More than 80 people have died in suicide and other attacks this year in a wave of violence following the assassination of opposition leader Benazir Bhutto on 27 December.
Since the attack, two new polls have shown Ms Bhutto's party to be the most popular in the country, with President Pervez Musharraf's party losing out.
50% of respondents said they would vote for Ms Bhutto's Pakistan People's Party against 22% for the party of former premier Nawaz Sharif in the poll.
The survey found that 75% of Pakistanis want Mr Musharraf out of office. His approval rating is at a new low of 15%, the survey said.
