At least four militants were killed in a suspected US drone attack in Pakistan's troubled north-western tribal areas along Afghanistan border on Thursday, security officials said, DPA reported.
The strikes occurred in Datakhel area of North Waziristan, one of seven tribal districts and renowned safe haven of al-Qaeda and Taliban.
An intelligence official, speaking on the condition of anonymity, said that three missiles were fired from the CIA-operated drones at a mud house used by the militants.
"The missiles completely destroyed the house and the local rescuers pulled four dead and several injured from the debris," he said.
North Waziristan is considered as the nerve centre of militancy in the entire tribal belt from where al-Qaeda and Haqqani group freely operated against NATO forces in Afghanistan.
The United States, which has been pressing Pakistan to launch military operation in the district, has stepped up drone attacks in the area.