Dhaka, Nov. 10 -- In a scene reminiscent of a crime thriller, bullets ripped through the morning air outside Dhaka National Medical College Hospital on Monday, killing Tarik Saif Mamun, whom police later identified as a top-listed criminal.

Officer-in-charge of Sutrapur police station Saiful Islam said the killing might be linked to a gang rivalry that resurfaced in recent months involving Mamun and his long-time rival Sanjidul Islam alias Iman, both once leaders of notorious 'Iman-Mamun Gang' that used to operate in Dhanmondi, Mohammadpur and Tejgaon areas.

Police and witnesses said two armed assailants opened fire at Mamun near the hospital gate and fled the scene immediately.

CCTV footages show the attackers firing multiple rounds o...