Muslim Brotherhood Supreme Guide Mohamed Badie and other group leaders have been referred to trial by Egyptian prosecutors for holding an "armed encampment" in Cairo's Rabaa Sqaure, a prosecution statement said.

The statement did not provide further details on the numbers or names of the other leaders who were referred to the criminal court.

Rabaa Square once hosted an encampment organised in late June 2013 to show solidarity with and support for ousted president Mohamed Mursi and his administration.

The encampment was set up days before Mursi's ouster on July 3, 2013 and was maintained for weeks after his ouster in July 2013 following mass protests against his rule.

Prosecutors said Badie and the other defendants organised the encampment and organised marches that targeted citizens in different locations. They are accused of staging an "armed gathering," arms possession and carrying out "terrorist acts," among various other charges.

In addition to the Rabaa encampment, a parallel but smaller encampment was set up for the same reason in Giza's Nahda square.

Both encampments were forcibly dispersed on August 14, 2013, leaving hundreds of protesters dead in what was described by Human Rights Watch as "the most serious incident of mass unlawful killings in modern Egyptian history."