Two college students were arrested on Monday for their alleged involvement in the 'gang rape' of a ninth grader madrasa girl at Gournadi Upazila in Barishal.
The arrestees are Sadik Sarkar, 17, son of Moksedul Sarkar of Nashratpur village in Gaibandha Sadar Upazila, and Sarwar Hossain, 17, son of Kaliapara village in Sherpur Sadar Upazila.
The 15-year-old victim filed a case with Gournadi police at noon, said Inspector Md Mahabubur.
Sajjad Hossain alias Shaon, 17, of Patuakhali's Galachipa Upazila, has been named as the mastermind.
Police recorded the victim's statement and sent her to Sher-e-Bangla Medical College Hospital for tests.
Shaon, Sadik, and Sarwar are second-semester students of Shahid Abdur Rab Serniabat Textile Engineering College. They lived at a mess in the municipality's North Bijoypur area.
Shaon had an affair with the ninth-grader.
He called the girl over phone on February 7 and requested her to visit him at his mess with medicine, the case statement says. When she went there, the three boys locked the room and raped her.
The accused also captured the incident on mobile phone and threatened to circulate it on the internet.
Shaon later blackmailed the victim and raped her more than once.