Ansar Al Islam, a banned militant organisation, has sent a letter to Bangla Academy threatening to bomb the ongoing Amar Ekushey book fair.
Receiving the letter, Bangla Academy Director General (DG) Md Nurul Huda filed a general diary with Shahbag Police Station in this regard.
The letter was sent to the office of Bangla Academy by post around 11:30 am on Thursday. Later, Bangla Academy Security Officer Md GD Jahangir Alam took it to the police station.
Police said they took the threat seriously with only four days of the fair left.
KM Mujahidul Islam, Member-Secretary of the Amar Ekushey Book Fair Management Committee, said,"The letter was sent by post at around 11:30 am. We have forwarded the letter to the police station They will look into it."