Islamabad, June 2 (IANS) Four people were killed in a US drone strike Saturday in Pakistan's northwestern tribal belt, said a security official here.

The strike occurred in Khawashi Khel village, near Wana town in South Waziristan which borders Afghanistan, Geo News reported quoting a security official.

Those killed included two militant commanders but there was no official word on the incident, reported Xinhua citing a local media report.