Khyber Agency residents have started fleeing to undisclosed locations to avoid being caught in the paramilitary operation against militants here. Also, the political administration has arrested several tribesmen under the Collective Responsibility Act of the Frontier Crimes Regulation (FCR). Local officials launched crackdown on Bar Qambar Khel, Shlobar Qambar Khel, Spah, Malik Din Khel and Aka Khel - all Afridi tribe clans. Khasadar force has been deployed at all entry and exit points.Dozens of tribesmen have been arrested for supporting cleric Mufti Munir Shakir's Lashkar-e-Islam, and a large number of people have evacuated their residences following a government notice to empty any residence one kilometre from the militant organisation's headquarters. Bara market was deserted on Friday and no shop or trade centre was open. The political administration did not detain any influential person focussing instead on poor people.