It said the case against Saif al-Islam Gaddafi and other senior regime members would include charges of forming criminal gangs, inciting rape and illegal detentions.
According to the BBC, among those who are expected to face trial in August are Gaddafi's intelligence chief Abdullah al-Senussi and ex-Prime Minister al-Baghdadi al-Mahmoudi.
Libya has resisted the International Criminal Court's requests to extradite Saif al-Islam for trial in The Hague.
He is wanted by the ICC on war crimes charges, but Tripoli has insisted he will be prosecuted at home, where he could even face death penalty.
According to the report, Saif al-Islam is currently held in the western Libyan town of Zintan, after he was arrested by militiamen at the end of 2011, the report added.
Prime Minister Ali Zeidan said that they would receive a fair trial.
--ANI (Posted on 18-06-2013)