At least 157 people were killed and 109 women raped by troops during a massive opposition protest in a Conakry stadium on September 28, 2009 against the rule of then junta chief Moussa Dadis Camara, after his security forces opened fire on the crowd.

There were hopes of prosecuting about 12 people suspected of being behind the massacre, after a years-long legal investigation into the event ended in December 2017.

The proceedings then stalled, prompting criticism from rights groups and the international community.

Guinea's ministry of justice repeatedly promised to stage the trial in June this year but that did not take place.

"After so much bullying and suffering, the Guinean government is humiliating us even more," said Saran Cisse, who said she was raped and beaten at the stadium in 2019, and called on the International Criminal Court to intervene.

Last week, the embassies of the United States, European Union and France in Conakry also issued a joint communique urging Guinea to "hold a trial as soon as possible".

A spokesman for Guinea's justice ministry told AFP that the government had played its part and that the trial date depended on the public prosecutor's office.

Sidi Souleymane Ndiaye, the relevant public prosecutor, confirmed on Monday that he currently is "organising the trial".

"The trial will soon be held at the premises of the Conakry Court of Appeal," he said, without specifying an exact date.