No group immediately claimed responsibility for the explosion, which also wounded at least 27 people, but Pakistan has struggled over the past months with a resurgent Pakistani Taliban.
The goal: inoculate 90% of girls in parts of Pakistan to immunize them against the infection that causes cervical cancer. "Our biggest challenge was to counter misinformation," says a spokesman.
Relations between the two neighbors hit a low point this month, with fighting killing people on both sides of the border. At issue is a rise in militancy in Pakistan since the Taliban took over Afghanistan.
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Clashes in recent days have killed dozens of people on both sides of the border. Pakistan is grappling with militant attacks that have increased since 2021, when the Taliban seized power in Afghanistan.
Afghanistan said Sunday it killed 58 Pakistani soldiers in overnight border operations, in response to what it called repeated violations of its territory and airspace.
In an unprecedented move, India held the water treaty in abeyance after blaming Pakistan for a deadly attack in April. Pakistan denies involvement in the attack and accuses India of "weaponizing water."
There were 71,000 deportations in the first half of June alone, according to U.N. estimates. These Afghan refugees are returning to a country in the throes of a humanitarian crisis.
The husband is from India. The wife is from Pakistan. Their son is Indian and daughters are Pakistani. India blames Pakistan for an April militant attack in Kashmir and ordered Pakistanis to leave.
The ceasefire has halted what some analysts say was the most serious fighting between the two countries since a 1971 war. But India's recent suspension of a key water-sharing treaty remains in place.
People on both sides of the Line of Control, which divides the territory, reported heavy exchanges of fire between Indian and Pakistani troops. The fighting subsided by Sunday morning.
Vice President Vance said the fighting between India and Pakistan was "fundamentally none of our business." Experts say the U.S. used to work hard to de-escalate crises between the nuclear states.
The escalation began after India accused Pakistan of being behind an attack where gunmen killed 26 people, mostly tourists, in India-administered Kashmir on April 22. Pakistan denies it.
