Pakistani firefighters extinguish a fire in a vehicle at the site of a bomb explosion in Parachinar, the capital of Kurram tribal district, on Sunday.
AFP/Peshawar
A bomb hidden in a bag ripped through a crowded bazaar in a mainly Shia area of Pakistan's northwestern tribal region on Sunday, killing at least 23 people and wounding more than 30, officials said.
The death toll was expected to rise after the explosion at the Eidgah used-clothes market in Parachinar city, the capital of Kurram tribal district on the border with Afghanistan.
"The death toll has reached 23 as many of the critically wounded succumbed to injuries as they were being shifted to helicopters to fly them to Peshawar," Amjad Ali Khan, the political administrator of Kurram, told AFP.
Two officials from the local administration corroborated the number of dead, while the military confirmed in a statement to media that two army helicopters had been sent to help transport the wounded.
Local television footage showed hundreds of male marketgoers fleeing the area, which was strewn with clothing and debris from the detonated IED (Improvised Explosive Device), as police tried to cordon off the location and ambulances rushed to the site.
Sectarian violence
No one immediately claimed responsibility for the attack, but the region is known for sectarian clashes.
Kurram is one of Pakistan's seven semi-autonomous tribal districts which are governed according to local laws and customs.
They are the frontline of Pakistan's battle against an Islamist insurgency that began in 2004 after the US-led invasion of Afghanistan forced Taliban and Al-Qaeda militants to flee across the border.
The insurgency has claimed the lives of around 25,000 civilians and security forces' personnel, according to the South Asia Terror Portal.
Overall levels of violence have decreased this year following a nationwide military-led offensive against militants.
The crackdown has also included groups who target Shias and preachers who incite hatred.
In July the leader of an anti-Shia group behind some of Pakistan's worst sectarian atrocities was killed in a shootout with police, along with 13 other extremists.
The killing of Malik Ishaq, the head of Lashkar-e-Jhangvi who had openly boasted of murdering more than 100 people, was seen by analysts as an extra-judicial killing by the state.
Haroon Bhatti, a key deputy to Ishaq, was killed in a similar shootout late last month.
But attacks against the minority persist.
In October a suicide bomber blew himself up at a Shiite religious procession in the southern city of Jacobabad, killing 24.
In May gunmen who pledged allegiance to the Islamic State group opened fire on a bus in Karachi carrying Ismaili Shias, killing 44.
The deadliest-ever attack against Pakistani Shias came in January 2013 when a suicide bomber blew himself at a snooker hall in the southwestern city of Quetta.
As rescue workers rushed to the scene, a truck packed with explosives parked nearby also detonated, with the overall toll close to 100 dead.
