Another case has been filed in connection with the violence in the district town over the death of a madrasah student in a triangular clash on 12 January.

Mufti Maulana Samsul Haq, a teacher of Jamia Islamia Yunusia Madrasah filed the case against 500 unidentified people with Sadar Model Police Station on Friday night, said police.

With this, a total of 12 cases have been filed over the violence, said police.

Earlier, on 12 January, madrasah students went on a rampage through the district town, protesting the death of Masudur Rahman, a student of Jamia Islamia Yunusia Madrasah, who was injured in a clash on the day before.

They also vandalised 12 establishments, set fire to two others and blocked the rail tracks during their daylong violent demonstrations.

At least 20 people, including Masudur, were injured in a triangular clash among the madrasah students, local traders and activists of Bangladesh Chhatra League over a trifling matter at Zilla Parishad Market in TT Road area on Monday evening.