Pakistan's army spokesman has confirmed three American soldiers were killed in a bomb blast in the northwest of the country.
Maj. Gen. Athar Abbas said one soldier was also wounded in Wednesday's blast in Lower Dir close to the Afghan border.
Pakistani security officials earlier said the soldiers were in the region as part of a small, little-publicized U.S. mission to train members of the paramilitary Frontier Corps to better fight al-Qaida and Taliban militants.
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