LADHA, Sept 22: A US drone struck a compound suspected to be housing militants in Shawal area of South Waziristan on Sunday, killing four foreigners and two local tribesmen. According to an official, the compound in Palgi area, adjacent to North Waziristan, was attacked at noon. The compound was hit by two missiles.

Taliban sources said four people from Central Asia were among the victims.

The names of those killed could not be ascertained.

A security official told AFP that the attack had also left three militants injured.

The government condemned the drone attack. According to APP, the Foreign Office spokesman said in a statement issued in Islamabad that the unilateral strikes were a violation of Pakistan`s sovereignty and territorial integrity.

He said Pakistan had repeatedly emphasised the importance of bringing an immediate end to drone strikes. He said the government had consistently maintained that drone strikes were counter-productive, entailed loss of innocent civilians` lives and had human rights and humanitarian implications.