Nnamdi Kanu, who heads a banned separatist group in Nigeria, has been denied bail by a court for the second time in as many months.
The Indigenous People of Biafra (Ipob) leader is awaiting trial on terrorism and treason charges, which he denies.
Mr Kanu, who holds a British passport, was arrested in Kenya a year ago and extradited to Nigeria – where he is in custody of the secret police.
Rejecting his latest bid, trial judge Binta Nyako said Mr Kanu had failed to give a satisfactory reason for breaching previous bail conditions imposed on him in 2017.
She insisted that the suit was a gross abuse of the court process and an attempt to continue to litigate on issues that have already been ruled on.
The case has been adjourned until November 14.
Ipob wants a group of states in south-eastern Nigeria, made up mainly of people from the Igbo ethnic group, to break away and form the independent nation of Biafra.