Five people, killed in first US drone attack on January 23 after the inauguration of Obama administration, were innocent civilians, well-placed sources have revealed. Sources said that US drone attacks on local population have heightened the tension and led to an increase in anti-Americanism in the tribal areas. The drone attack was carried out on January 23 in Gangai Khel area in South Waziristan in which five tribesmen, Malik Din Faraz, Sher Ghulam, Hamdullah, Habib Noor and Lohi Khan were killed.