Detective Branch police led by Additional Police Super Jahangir Hossain Matubber arrested Md Salim alias "Karate Salim", 34, along with his three accomplices from a hotel in the city's Chawk Bazar area on Saturday night, police said.

During interrogation, Salim confessed of possessing more than 30 illegal firearms that he rented out to robbers in different areas of the district.

Police went out to search for illegal firearms taking Salim with them at a hideout of criminals in Majumderkhil under the upazila at around 3.30am.

As police reached near Majumderkhil School, Salim's accomplices opened fire on the law enforcers, triggering a gunfight.

Trying to flee, Karate Salim fell in the line of fire and received bullets.

He was rushed to the local upazila health complex where the on-duty doctor declared him dead, police said, adding that Constable Wahiduzzaman was also bullet-hit during the incident.

Police seized a local made gun, one LG and seven bullets from the spot.

Karate Salim was accused in over 13 criminal cases.