In Pakistan, four militants were killed and three others injured in a US drone strike in the restive North Waziristan tribal region yesterday.<br/><br/>Official sources said, the drone strike occurred in Anbar Shaga area of North Waziristan Agency bordering Afghanistan. <br/><br/>The militants were targeted when they stopped their car to say their prayers. <br/><br/>Anbar Shaga is part of the stronghold of militant commander Hafiz Gul Bahadur.<br/>