Afghanistan, Dec. 20 -- Four Pakistani soldiers were killed in a suicide attack in North Waziristan, prompting Islamabad to summon a Taliban diplomat and accuse militants based in Afghanistan of involvement.

Pakistan summoned the deputy head of the Taliban's embassy in Islamabad after a suicide bombing in North Waziristan killed four Pakistani soldiers, escalating tensions between the two neighbours.

The attack occurred in the Boya area when a suicide bomber detonated explosives near a military facility, the Pakistani army said, adding that gunmen then attempted to storm the compound.

Security forces repelled the assault after an exchange of fire, killing all five attackers involved, while at least 15 civilians were wounded in the blast ...