Sylhet Correspondent:At least four explosions were heard at militant den �Atia Mahal� in Dakshin Surma Shibbari area in Sylhet on Tuesday.
The explosions were heard around 1:10pm. The law enforcers thought that the explosion might be took place at the time of defusing bomb.
Army bomb disposal unit are working for defusing bombs at Atia Mahal.
Army commando members recovered two bodies of militants, among the four slain militants on Tuesday morning.
Later the bodies were handed over to police.
Moreover, two bodies of militants were rescued on Monday night, have been rushed to Osmani Medical College Hospital morgue.
The another two bodies will be sent to the hospital, said officer-in-charge of Kotwali police station Sohel Ahmed.
Security and safety has been tightened in three square kilometers area from Atia Mahal.
Witnesses and locals said no explosion was heard from Monday night to Tuesday noon.
The section 144 has still been beefed at the area.