Two US drone missile attacks have killed at least 15 people in the Pakistani tribal region bordering Afghanistan, officials said. Twelve people were killed when a drone fired two missiles at a compound used by suspected militants in North Waziristan on Monday night, the (BBC) reported Tuesday. Earlier on Monday, another drone fired two missiles at a vehicle in North Waziristan, killing three people. North Waziristan has been targeted by drone strikes for months. The US said the region is home to several militant groups involved in attacks on Nato forces in Afghanistan.