Members of Rapid Action Battalion (RAB) arrested an arms trader with four one-shooter guns and 23 rounds cartridge from Shikalbaha area under Karnaphuli thana in the city on Saturday.
The arrested person has been identified as Mohammad Ali Akbar, 50, son of Nur Ahmed, hailed from Hatiya upazila of Noahkhali district. Assistant Director of RAB-7 Mahmudur Rahman Mamun confirmed the matter.
He said, based on secret information, a team of the elite force conducted a drive in the area and nabbed Akbar with the arms and ammunition around 5am.
In primary interrogation, the arms trader confessed his involvement with such arms trading for long.
A case was filed with Karnaphuli Police Station in this connection, Mamun added.