Rab said they arrested Jasim on Dolphin Lane in Lake Circus in Kalabagan on Tuesday night. He was accused of 20 criminal offences including two murders, drug smuggling and possessing explosives.

"The drug lord disclosed all about his drug trade and criminal activities. He also gave information about his unregistered firearms and a den of his associates at Dhupkhola," says a Rab press release.

The Rab-3 took Jasim to the area "to arrest his associates and seize firearms" around 3:00am.

"As the Rab team reached Dhupkhola playground at 3:20am, criminals opened indiscriminate fire on the elite force, prompting Rab men to retaliate," the press release adds.

Jasim was bullet-hit when he made an attempt to escape, but his associates fled the scene after a 20-minute 'gunfight'.

Rab men took him to Dhaka Medical College and Hospital where doctors declared him dead.

The press release claims Rab recovered a .32 bore revolver, a 7.65 bore pistol, seven bullets, four bottles of phensidyl.