Twenty-four more people were arrested in the past 24 hours in connection with the clashes and vandalism by Hefazat-e-Islam activists and supporters in Brahmanbaria last month, police said Friday.
The arrests were made from different parts of the district, according to the special branch of district police.
So far, 54 cases have been filed and 261 people arrested over the violence, the police said.
Also read: 30 more held over clashes in Brahmanbaria
On March 27, at least five people were killed and around 50 others, including 25 policemen, injured in clashes between members of the law enforcement agencies and locals during Hefazat's demonstrations at Nandanpur in Sadar upazila.
They had staged the protests against Indian Prime Minister Narendra Modi's Bangladesh visit.
The next day, during Hefazat's countrywide dawn-to-dusk general strike, against police action on their anti-Modi processions in Dhaka, the organisation's activists in Chattogram and other districts set three buildings on fire, including the land office in Brahmanbaria Sadar upazila.
They had also attacked a Chattogram-bound train at Talshohor Rail Station in Brahmanbaria town.
Also, the Hefazat supporters vandalised several private and government establishments, including the municipality building, Alauddin Music Academy, and Foirtala Bus Stand in Sadar upazila.
They had also attacked Brahmanbaria Press Club and confined some journalists to the premises.