( CNN ) -- A roadside bomb killed 14 people and wounded six in northwest Pakistan on Sunday , a government official said . The blast targeted a passenger van in the Lower Dir district near the village of Bunr , said Hussain Ahmed , the official . The bomb was remotely detonated , he said . Details about the van 's occupants were not available . There was no immediate claim of responsibility . The bombing in the Lower Dir district is the latest violence to strike Pakistan 's tribal region that borders Afghanistan . The district is one of 24 that make up the Khyber Pakhtunkhwa province . It was formerly known as the North West Frontier Province , a name assigned during the British colonial rule . The ruling party changed the name to reflect the province 's majority Pashtun population . Khyber Pakhtunkhwa is rife with Islamic extremists and has been the site of recent clashes between Pakistani security forces and militants . On September 3 , an explosives-filled car slammed into a U.S. Consulate vehicle in the provincial capital , Peshawar . The attack took place in an area of the city where several international agencies have offices . In addition to the U.S. Consulate , the U.N. refugee agency , UNHCR , is in the area . In May 2011 , a remote-controlled car bomb targeted a convoy of U.S. Consulate vehicles in Peshawar , killing one person and wounding 11 . The Taliban claimed responsibility for the attack . In April 2010 , three explosions went off in rapid succession near the consulate . Journalist Aamir Iqbal contributed to this report .
A roadside bomb targeted a van in northwest Pakistan , an official says . The explosion killed at least one person and wounded four others.