At least two people were killed and three others injured in a suspected U.S. drone strike launched on Sunday afternoon in Pakistan's northwest tribal area of North Waziristan, reported local English TV channel Express. Details about the drone attack are not known immediately as North Waziristan is a remote mountainous area bordering Afghanistan. But TV reports said that the casualties were feared to be high. The Sunday U.S. drone strike is the second of its kind over the last week or so. In the previous attack, a dozen of people were reportedly killed or injured. 