DHAKA, July 16 (Xinhua) -- Bangladesh's anti-crime elite force Rapid Action Battalion (RAB) on Sunday cordoned off a residential building on the outskirts of capital Dhaka when militants with huge explosives opened fire at the law enforcers.
The RAB team surrounded the village house early Sunday suspecting presence of Islamist militants there, said Abdul Awal, a police official in Ashulia.
"Militants fired at least five gunshots" from inside the house, he said, adding that the militants also hurled crude bombs at the law enforcers.
In retaliation, according to the official, RAB members also fired at the militants.
No one was hurt in the incidents of gunfire and blasts.
The RAB team on loudspeaker asked the suspected militants to surrender.
Authorities have already imposed a restriction on movement of vehicles and pedestrians around the terror hideout which is now under siege by the security forces.
No further details were immediately available about the raid.
Security has been tightened in Bangladesh since militants attacked a Spanish cafe in Dhaka's Gulshan on July 1 last year, killing 22 people mostly foreigners.
Since the cafe attack, Bangladeshi police have conducted series of large-scale operations against militants.