The army is yet to respond to the demands for the disclosure of the whereabouts of Kanu.
The IPOB members were among those arrested by security agents in Umuahia, Isiala Ngwa and other parts of the state capital during the clash between the Army and members of the separatist group.
In fact, the army accused IPOB members of attacking its personnel with "stones, molotov cocktails, machetes and broken bottles, among others on a military patrol on September 10, 2017".
The United States over the weekend said it did not recognize IPOB as a terrorist organization even though it remained committed to a united Nigeria.
Kanu was detained for over a year and half on charges of treason and was only released on strict bail conditions in April this year. Human rights groups have reported that the army's highhandedness has led to death of scores of IPOB members.
The Nigerian army two weeks ago declared the group a terrorist organization after a clash between the two in south-east Abia State.
Nigeria had equally accused both the governments of France and the United Kingdom of being in support and as well as funding IPOB's activities in Nigeria but the two governments of France and UK denied the allegation.
This Notice shall be cited as the Terrorism (Prevention) (Proscription Order) Notice, 2017.
The magistrate, who directed that the case file be transferred to the Department for Public Prosecution (DPP) for advice, adjourned the matter till October 25 for compliance and possible transfer to a High Court.
But IPOB had equally approached the court, demanding it to quash the order, saying the court order that said it was a terrorist organisation was a black market order.
Meanwhile, the Nigerian government last week proscribed the activities of the agitation group, describing it as illegal.