The State Security Service (SSS) on Thursday night released Omoyele Sowore, publisher of Sahara Reporters.
Mr Sowore was arrested on August 3 for planning a revolution rally.
Mr Sowore first met his bail on November 6, one month ago, but he was not released. A federal judge, on Thursday morning, gave 24 hours for Mr Sowore to be released.
Simultaneously, the Federal High Court in Lagos has sentenced a former Abia State Governor, Orji Uzor Kalu, to a maximum of 12 years imprisonment for N7.65bn fraud, among other multiple sentences ranging from 3 years to 5 years on 27 counts.
Justice Mohammad Idris also convicted and sentenced his two other accomplices who were also found guilty of N7.65bn fraud.
They got multiple sentences between 10 years and 3 years.