A fifth-grade madrasa student was gang-raped allegedly by three youths in Teknaf upazila under Cox's Bazar district. The victim's father filed a case accusing three persons with Teknaf Police Station today noon, said the station's on-duty officer Assistant Sub-Inspector (ASI) Saif. The accused are Md Ismail (23), Md Nurul Absar (20) and Amin (30), said police sources.