National Investigation Agency (NIA) has conducted searches at six different locations in four Districts of Tamil Nadu in a case related to Facebook posts by an extremist advocating the ideology of the Islamic State (IS) and Hizb-ut-Tahrir (HuT), an official said on July 25, reports Indian Express. The searches were carried out in Thanjavur, Madurai, Theni and Tirunelveli Districts at the residences of arrested accused Abdullah and his associates, the official of the NIA said. During searches, 22 digital devices, including mobile phones, hard disks, memory cards, pen drives, laptops and many booklets containing incriminating materials have been recovered, the NIA official said, adding that further investigation in the case continues.