PESHAWAR - Eight people including five women and a young boy of a same family were killed while another person sustained injuries in a landmine explosion in Upper Kurram Agency on Tuesday.

According to the political administration, the ill-fated family was travelling in a vehicle to offer condolence for a deceased person at Ghoz Garhi Village when an improvised explosive device hit the vehicle at Maqbal Mata Sangar locality bordering Afghanistan.

Resultantly, eight people, including three women, two minor girls, a seven-year-old boy and two men, were killed while another person sustained multiple wounds. The injured was shifted to Peshawar for medical treatment.

The political administration said that the vehicle was completely destroyed in the explosion. After the incident, personnel of law enforcement agencies rushed to the site and cordoned off the area, launching a search operation but no arrest was made.

Nine passengers were travelling in the van, senior local government official Basir Khan Wazir told AFP, while confirming the death toll.

He said officials were struggling to identify the mutilated victims but initial evidence suggested all the passengers were Shiites. A local intelligence official also confirmed the incident and casualties.

Upper Kurram has been the scene of several bomb attacks targeting Shiites in the past. No group has claimed responsibility for the latest attack. Militant groups linked to Al-Qaeda and the Taliban often attack Shiites, who make up some 20 percent of the population.

Kurram is one of the seven semi-autonomous regions which form the tribal belt along the Afghan border. Militants linked to the Taliban and Al-Qaeda have taken sanctuary there for over a decade. The tribal districts are among the poorest areas in Pakistan and often complain of neglect by Islamabad.

They also remain a top target for militant groups, despite a dramatic improvement in security in the country at large in recent years.