The Rapid Action Battalion (RAB) on May 20 arrested a cadre of banned militant outfit Ansar-al-Islam from Tajmahal Road Eidgah Math area of Dhaka District in Dhaka Division, reports Dhaka Tribune. The arrestee was identified as Mohamad Soiabur Rahman Kawser (21). RAB recovered extremist books and leaflets, and a mobile phone from his possession.