Militants ambushed an army convoy in northwest Pakistan late on Wednesday killing six soldiers and wounding two others, military officials said. The vehicles were patrolling the Matani area, 25 kilometres south of Peshawar, the capital of Khyber Pakhtunkhwa province, when they came under attack, Pakistan\'s Geo News reported. Six soldiers were killed and two were wounded, he said, adding that at least four militants were also killed. A security official in Peshawar confirmed the attack and the military casualties. He said five \"terrorists\" were killed in the clash. At least one military vehicle was destroyed in the ambush, the security official said.