Acting on a tip-off, a team of Rab-6 arrested Mujibur Aratdar, 50, also an illegal arms trader, at Tafalbari Bazar under Swarankhola upazila of the district on Thursday night.

On his confessional statement, the Rab men along with Mujibur set out for Bisharighata at about 2:40am to arrest his cohorts and recover illegal firearms.

When they reached there, Mujibur's accomplices opened fire on the law enforcers, prompting them to retaliate.

According to Rab, Mujibur received bullets during the shootout and died instantly.

One home-made gun, five live cartridges and one used bullet shell were recovered from the spot.

Rab said Mujibar was wanted in several criminal cases, including two for murder, recorded with Swarankhola Police Station.