Suspected Taliban gunmen ambushed a security vehicle on Wednesday, killing three intelligence officials in Pakistan's north-western province of Khyber-Pakhtunkhwa, police said.
One official was injured in the attack in the Janikhel area of Bannu district, district police chief Sajjad Khan said, DPA reported.
Janikhel is near North Waziristan, one of seven tribal districts where Taliban and al-Qaeda militants have their bases.
No one has claimed responsibility for the ambush, but local police said they suspected Taliban fighters.
The assault came a day after insurgents shot a school van, killing three children and the driver while injuring 19 other children.
A Taliban spokesman said that attack was carried out to punish the families of the children for organizing militias against them.
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