At least 35 people have been killed and 60 others injured in a suicide car bomb attack at a village market in north-west Pakistan. Police said the explosion took place at a busy intersection close to the garrison town of Kohat. Most of the dead are said to be members of the Shia Muslim minority. The area has a history of sectarian tension. Astarzai village, where the blast took place, has a substantial Shia population and is close to the Orakzai tribal region, a stronghold of the Taliban's present chief. The car bomb was detonated close to a hotel owned by a Shia Muslim businessman. A local police official said dozens of shops were destroyed. Their roofs caved in and many people were trapped under the debris. A little-known militant group calling itself Lahskar-e-Jhangvi al-Almi says it carried out the attack. It says the attack was in revenge for the death of a prominent religious leader, Maulana M Amin, who was killed in Hangu in June. Reports say the group is likely to be linked to Lashkar-e-Jhangvi, a Sunni extremist group which has links to the Taliban.