Islamabad, Pakistan (CNN) -- A suspected U.S. drone strike in Pakistan's tribal region killed six alleged militants on Monday, intelligence officials told CNN.
Two Pakistani intelligence officials said the suspected drone fired two missiles on an alleged militant's vehicle in the area of Azam Warsak of South Waziristan.
South Waziristan is one of the seven districts of Pakistan's volatile tribal region bordering Afghanistan.
The intelligence officials asked not to be named because they were not authorized to speak to the media.
The overwhelming majority of drone strikes have targeted areas in North and South Waziristan. Analysts say the areas are havens for militants fueling the insurgencies in Pakistan and Afghanistan.
The United States does not comment on suspected drone strikes. But it is the only country in the region known to have the ability to launch missiles from drones -- which are controlled remotely.
Journalist Saboor Khattak contributed to this report.