( CNN ) -- Deposed Egyptian president , Hosni Mubarak , appeared in court Sunday as his retrial resumed on charges involving the killing of hundreds of protesters during the popular 2011 uprising that led to his ouster . Mubarak was convicted on the charges last year and sentenced to life in prison , but appealed the ruling and was granted a retrial . A court ordered Mubarak released last week and placed under house arrest while he awaits a retrial . The 85-year-old Mubarak had been held since shortly after he was removed from power . The ousted autocratic leader 's health has been a bone of contention during his trial and incarceration . He suffered a heart attack after relinquishing power and had said that he was physically unfit to stand trial . Opinion : What Mubarak 's release means . Muslim Brotherhood trial . The spiritual leader of the Muslim Brotherhood was also to appear in a Cairo courtroom Sunday to face charges of inciting violence that took the lives of eight protesters in the wake of former President Mohamed Morsy 's ouster from power . Morsy was elected after Mubarak was toppled . But Mohamed Badie did not appear in court . Last week , the military arrested Badie , the group 's supreme guide , and Safwat Hegazy , a preacher and hardline supporter of the movement . They were among about 100 members of the Muslim Brotherhood taken into custody on Tuesday . Morsy , who was deposed by the military amid widespread protest over his rule , has been held since early July . Egypt has been in turmoil since Morsy 's removal from office , with the military battling Muslim Brotherhood members and other Morsy supporters . This month , about 900 people -- citizens as well as members of security forces -- were killed . The deaths occurred when the military used force to clear two pro-Morsy sit-in sites in Cairo . CNN 's Saad Abedine and Ben Brumfield contributed to this report .
He was convicted in the killing of hundreds of protesters . He was sentenced to life in prison , but appealed the sentence and was denied a pardon . A Muslim Brotherhood leader is also to face trial over incitement of violence .