Dhaka: A Dhaka court on Wednesday placed four alleged members of Jama'atul Mujahideen Bangladesh (JMB), including a pilot of Biman Bangladesh Airlines, on different terms of remand in a case filed under the Explosive Substances Act.

Dhaka Metropolitan Magistrate Ahsan Habib passed the order after Sub-inspector Md Amirul Islam of Rapid Action Battalion-4, also the investigation officer of the case, produced them before the court seeking a 10-day remand for each.

Of them, Sabbir Ahmed alias Amam Sabbir was put on a on seven-day remand while his mother Sultana Parvin on a five-day one, and their close relative Asifur Rahman Asif and Md Alam, a tea stall owner, were placed on a six-day remand each.

RAB members arrested the four alleged JMB men, who had been planning acts of sabotage on an aircraft, from Mirpuar area on Tuesday.

Sabbir is a first officer of the national flag carrier and son of Habibullah Bahar Azad, who was arrested after a drive at a militant den at Mirpur Mazar Road on September 7 last.

Azad is the owner of the six-storey building where the militant hideout was busted.

Earlier, the elite force recovered the skulls of seven people, including two women and two children, from the Mirpur militant hideout after the anti-militant operation.

Militant Abdullah, his two wives, two children and two associates blew themselves up detonating explosives in the multi-storey building of Azad in the city's Darus Salam area.

RAB also recovered huge improvised explosive devices (IEDs) while searching the suspected hideout of militants.