Dhaka, Oct. 13 -- Firefighters who fell ill from smoke while battling the fire at Mansur Khan Tower in Dhaka's Chawkbazar have been placed under observation at the National Institute of Burn and Plastic Surgery.

The four, who succumbed to the fumes while tackling Monday's blaze, are firefighter Md Zillur Rahman, 40, and leader Md Nazrul Islam, 50, of Palashi Fire Station; station officer Md Maruf, 35, of Siddik Bazar Fire Station; and leader Md Mahfuzur Haque Majumder of Khilgaon Fire Station.

The Fire Service and Civil Defence said they were overcome by dense smoke while working to contain the fire, and were later rescued and taken to the burn institute.

The agency received word of the fire at the Old Dhaka market just after 5pm on Mo...