Islamabad:
A US drone fired missiles at a Taliban training centre in Pakistan's restive North Waziristan tribal area on Wednesday, killing at least four militants.
The drone attack occurred in Sunzali area of Datta Khel sub-division of North Waziristan, the fourth such strike in the restive tribal region in a week.
The drone fire two missiles at a militant training centre killing four Taliban fighters, sources said.
Wednesday's attack follow the January 3 strike when US missiles targeted a house used by militants in a village in Mirali, a stronghold of al-Qaeda and Taliban, in North Waziristan killing at least three people.
Earlier, eight militants were killed in two separate US drone attacks in the area on December 31 and January 1 respectively.