Ejiofor said his client met all outstanding conditions on Friday and was released shortly after all necessary documents were signed by the trial judge.
"Nnamdi Kanu left the prison at about 5pm after meeting the bail conditions," Ejiofor said.
Justice Nyako of the High Court had on Tuesday granted bail to Kanu on health grounds. The judge, however, barred the IPOB leader from granting press interview while on bail. Walking out of the prison premises, the IPOB leader was caught in a video footage saying goodbye to some prison warders.
He also had a group picture with some friends and family members.
See the video when he was released from prison below