Pakistani authorities now say at least 33 people have been killed in a suicide car bombing in North West Frontier Province.

Pakistani villagers look at destruction caused by the explosion on the outskirts of Peshawar, 06 Sep 2008

Police issued the revised death toll Sunday after finding more bodies in the rubble from the blast.

Local officials say the bomber rammed his explosives-laden car into a police checkpoint near the provincial capital, Peshawar, Saturday destroying the checkpoint and bringing down two nearby buildings.

They say five policemen were killed in the attack and that more than 80 other people were wounded.

They also say the death toll could rise further as rescuers continue to search through the rubble for survivors.

Pakistani Taliban militants claimed responsibility for the bombing. The radical Islamist group said it has carried out a string of attacks in recent weeks in retaliation for military operations in Pakistan's tribal region bordering Afghanistan.

The International Committee of the Red Cross says fighting in Pakistan's tribal areas has displaced tens of thousands of people in recent weeks.

Red Cross official Pascal Cuttat said in Geneva Friday that as many as 300,000 people have fled their homes in Bajaur district. He said 80 percent of those displaced are women and children.

Pakistani government forces have intensified attacks on al-Qaida and Taliban militants in Bajaur over the past month.

Some information for this report was provided by AFP, AP.