A Libyan investigative judge on Thursday indicted 37 Muammar Gaddafi-era officials on charges related to attempts to crush a 2011 uprising that eventually toppled the long-serving dictator.

The defendants, including Gaddafi’s son, Saif al-Islam, are charged with genocidal murder, incitement to rape, ordering the killing of peaceful protesters and setting up armed militias to kill civilians during the uprising.

The case is to be heard by the Criminal Court in Tripoli, which has yet to set a date for the beginning of the hearings.

“Now that the case has been referred to the Criminal Court, the defendants’ appearance before the court will be obligatory,” al-Sediq al-Sur, an official at the prosecutor general’s office said.

Gaddafi was captured and killed by opposition insurgents in October 2011 in his hometown, Sirte.

His son, Saif al-Islam, is being held in the western Libyan city of Zintan, where he is being tried in a separate case.

Libya has resisted pressure from The Hague-based ICC to hand over Gaddafi’s son for trial on charges of crimes against humanity during the uprising.

The ICC, which issued its arrest warrant for the younger Gaddafi in June 2011, has questioned whether he would receive a fair trial in the North African country.