Egypt's Court of Cassation overturned on Tuesday a life sentence against deposed President Mohammad Mursi of the Muslim Brotherhood and ordered a retrial in the case that revolves around accusations of espionage with Palestinian group Hamas.
The court last week overturned a death sentence against Mursi in a separate case, meaning he no longer faces execution.
Mursi quit following mass protests against his rule, and was immediately arrested.
He remains in jail on separate convictions.
Mursi was one of 22 high-ranking Muslim Brotherhood officials and supporters convicted last year of spying for the group Hamas.
The Court of Cassation's ruling on Tuesday overturns all convictions in the case, including life sentences against Mohamed Badie, the General Guide of the Muslim Brotherhood, and 15 others.
Senior Brotherhood officials Kheirat Al Shater and Mohammad Al Beltagi as well as Mursi aide Ahmad Abdelatti had originally been sentenced to death in the case and also saw their convictions dropped on Tuesday.
The Egyptian government says it does not interfere in the work of the judiciary. Egypt's judiciary says it is independent.
The government termed the Brotherhood a terrorist group. The Brotherhood says it is committed to peaceful activism.
