Rapid Action Battalion (Rab) has detained four people in connection with the alleged assault of a female student of Chattogram University that sparked protests on the campus. The detainees have been identified as Mohammad Azim, 23, son of Amir Hossain of Noakhali, Nur Hossain alias Shaon, 22, son of Zabed Hossain of Fatehpur, Nurul Absar alias Babu, 22, son of Belayet Hossain of Feni district, and Masud Rana alias Masud, 22, son of A Mannan of Jhalakathi district. Tipped off, a team of Rab-7 conducted drives in Hathazar and Raozan upazilas and detained them on Friday night, said Commanding officer of Rab-7, Lieutenant Colonel MA Yusuf, on Saturday morning. Read: 3 held for thrashing disabled man in Bhola During questioning , the detainees have confessed to their guilt, said Rab. On Sunday, a female student was physically assaulted by five youths while she was going to the Botanical Garden from Pritilata Hall of the campus with his friend around 10pm. They had also captured the incident on video and threatened them to make it viral. Later, they fled with the mobile phones and wallets of the two students. A five-member body has already been formed to look into the matter while a complaint was lodged with Hathazari Police. Meanwhile, Chattogram University (CU) students staged a protest on the varsity campus on Wednesday night, demanding justice for the female student. The students had also protested against the university’s diktat asking students to return to the campus latest by 10pm.