Authorities of all the prisons in the country have been put on alert following a threat by militant outfits to break out their activists from jail.
Inspector General (prisons) Brig Gen AKM Mustafa Kamal Pasha sent out letters to all the prisons concerned containing 18 specific instructions, AIG Muhammad Monzur Hossain of the prison authorities told to media.
The order to ratchet up security measures in jails comes as a militant group recently threatened the Lalmonirhat administration and prison authorities to break out their comrades from the prison, said AIG Hossain.
The instructions by the chief of prison authorities, include forming special strike forces and keeping a close watch on the movement of all inmates, especially members and leaders of militants outfits, notorious criminals, and detainees of sensitive cases, like the 2008 Peelkhana carnage incident.
Guards posted at the entrance have been ordered to wear bullet-proof vests, helmets and to use metal detectors to check arrivals, says the letter by the prison chief.
Armed sentries must be deployed on duty, and the security of weapons and arsenal must be ensured, it added.
No vehicles, other than the official ones for prison, can be allowed inside the premises and the jail authorities have told to install security cameras at the entrance.
Prisons across the country have been also ordered to conduct emergency drills by guards to ensure quick response in case the facilities come under attack.
The IG of prisons also directed the police to keep in touch with jail authorities in the areas where militants are lodged.