A suicide bomber killed at least seven people and wounded 20 others in northwest Pakistan on Tuesday, according to police, in the latest attack to underscore deteriorating security conditions and escalating tensions between Pakistan and neighboring Afghanistan.
The bombing occurred at a traffic police checkpoint, only days after another deadly suicide attack in the city of Bannu, where militants detonated a car bomb before opening fire on police officers, killing at least 15 people.
Senior police official Muhammad Sajjad Khan said the attacker targeted officers stationed at the checkpoint.
“According to the initial reports, the suspected suicide attacker approached the two traffic police officers stationed at the checkpoint before blowing himself up,” Khan told AFP.
The latest attack comes amid a broader surge in militant violence that Pakistani authorities increasingly blame on armed groups operating from Afghan territory. Islamabad has repeatedly accused Afghanistan’s Taliban government of providing sanctuary to militants linked to the Tehreek-e-Taliban Pakistan (TTP), also known as the Pakistan Taliban, which has intensified attacks across Pakistan in recent years.
Pakistan’s foreign ministry on Monday summoned Afghanistan’s top diplomat in Islamabad after authorities concluded that the weekend suicide bombing in Bannu had been “masterminded by terrorists residing in Afghanistan.”
The Afghan Taliban government has strongly denied those allegations, insisting it does not allow Afghan territory to be used for attacks against neighboring countries. Taliban officials have countered that Pakistan itself shelters hostile anti-Afghan groups and violates Afghan sovereignty through military operations and cross-border strikes.
Relations between the two countries have sharply deteriorated since the Taliban returned to power in Kabul in 2021 following the withdrawal of U.S.-led international forces. What initially began as diplomatic friction over border security has increasingly escalated into open military confrontation.
Earlier this year, Pakistan’s defense minister described the situation between the two neighbors as “open war” after a series of deadly clashes and retaliatory strikes along the border.
The worsening conflict has also inflicted a mounting toll on civilians inside Afghanistan, according to a report released Tuesday by the United Nations Assistance Mission in Afghanistan (UNAMA).
The UN mission said at least 372 Afghan civilians were killed and 397 wounded during the first three months of 2026 as a result of cross-border violence involving Afghan security forces and Pakistani military forces.
“Between 1 January and 31 March 2026, UNAMA documented a total of 372 civilians killed and 397 injured as a result of cross-border armed violence,” the report said.
The casualty figure marks the highest number recorded by UNAMA for the first quarter of any year since 2011.
According to the report, the dead included 13 women, 46 children, and 313 men. The UN attributed 64 percent of the casualties to airstrikes, while the remainder were caused by indirect cross-border shelling and one targeted killing.
The deadliest incident cited in the report was a March 16 airstrike on a drug rehabilitation hospital in Kabul that killed at least 269 people and wounded 122 others.
The treatment facility admitted only male patients, which UN officials said explained the unusually high proportion of male victims among the casualties recorded during the reporting period.
The report described horrific scenes following the attack, saying many victims could not be identified because their bodies had been dismembered or severely burned.
“Many bodies could not be identified because they were reduced to dismembered body parts,” the report stated, adding that others were unrecognizable “due to extensive burns.”
UNAMA warned that the actual death toll could be significantly higher.
The Taliban government has claimed more than 400 civilians were killed in the strike, making it one of the deadliest attacks in Afghanistan since the Taliban regained control of the country.
Pakistan rejected accusations that civilians or medical facilities were deliberately targeted.
In a written response included in the UN report, Islamabad said “no hospital, drug rehabilitation center, or civilian facility was targeted.”
“Pakistan’s actions were directed solely against terrorist and military infrastructure,” the Pakistani government said.
The UN mission nevertheless urged all parties involved in the conflict to comply with international humanitarian law and avoid targeting civilian infrastructure, especially health facilities.
UNAMA also appealed to Afghan authorities to create a formal record of missing persons from the Kabul hospital strike so families could obtain information about relatives who remain unaccounted for.
The report further highlighted the human cost of continued hostilities even during declared ceasefires.
One case detailed the death of a female Afghan NGO employee in Nuristan province on March 19 during the Eid al-Fitr holiday, despite a ceasefire reportedly agreed upon the previous day.
According to the UN account, the woman was attempting to return home with her husband and three children when Pakistani forces allegedly opened fire on their vehicle.
The family abandoned the car and attempted to cross a river to safety. The woman was reportedly shot in her side, fell into the water, and drowned along with her three-year-old son.
The incident became one of several examples cited by UNAMA to illustrate the vulnerability of civilians trapped in the conflict zone along the Afghanistan-Pakistan border.
Cross-border violence intensified dramatically in October last year, leaving dozens dead on both sides. Although the fighting subsided temporarily, clashes resumed in late February and have continued sporadically since then.
Pakistan has justified military operations by arguing that militant groups use Afghanistan as a launchpad for attacks against Pakistani civilians and security personnel.
The TTP, ideologically aligned with the Afghan Taliban but organizationally separate, has carried out numerous attacks inside Pakistan, particularly in the northwestern provinces bordering Afghanistan.
Islamabad says the Taliban authorities in Kabul have failed to dismantle militant sanctuaries despite repeated diplomatic demands.
Afghan officials reject the accusations and maintain that Pakistan uses security concerns as a pretext for violating Afghan sovereignty through airstrikes and artillery shelling.
The diplomatic crisis has also complicated regional efforts to stabilize relations between the two countries.
China hosted talks involving Pakistani and Afghan officials in early April in an effort to reduce tensions and prevent further escalation. According to Beijing, both sides committed to avoiding actions that could worsen the conflict.
Although incidents have declined since those negotiations, violence has not ceased entirely.
On April 27, Afghan authorities said shelling struck several locations in the eastern city of Asadabad, including a university campus, killing seven civilians and wounding 85 others.
The attack reinforced fears that the conflict is increasingly affecting populated civilian areas rather than remaining confined to military targets.
Security analysts warn that continued instability along the Afghanistan-Pakistan border could further destabilize the broader region, particularly if militant organizations exploit deteriorating relations between Islamabad and Kabul.
For Pakistan, the resurgence of suicide bombings and coordinated militant assaults represents a major security challenge at a time of economic difficulty and political uncertainty.
For Afghanistan, continued cross-border military operations threaten to deepen an already severe humanitarian crisis under Taliban rule, with millions facing poverty, displacement, and limited access to healthcare.
The latest suicide bombing in northwest Pakistan and the rising civilian casualties documented by the United Nations underscore how rapidly the confrontation between the neighboring countries has intensified — and how civilians on both sides of the border continue to bear the brunt of the violence.
