Nnamdi Kanu, the leader of the Indigenous People of Biafra, IPOB, protested the Department of State Services’ refusal to let certain lawyers into the Abuja Federal High Court on Wednesday.
Kanu was brought into court by the DSS at 9:52 a.m.
As his trial resumed, the secret police prevented lawyers, journalists, and traditional authorities from entering the courtroom.
Delegates of the Igbo Traditional Rulers were also denied admission to the building by the DSS.
Traditional rulers have gathered in Abuja to show support for the IPOB leader, whose late father was an Eze in Afaraukwu, Umuahia, the state capital of Abia.
The Nigerian government is prosecuting Kanu on terrorism-related offences before Justice Binta Nyako’s court.
In June, he was re-arrested in Kenya and deported to Nigeria to face his charges.