Cairo ( CNN ) -- The case against the Muslim Brotherhood 's spiritual leader Mohammed Badie and 682 other supporters of ousted President Mohamed Morsy was adjourned Tuesday at a Egyptian court until next month , defense lawyer Gamal Abdel Meguid said . It comes a day after the same court sentenced 529 supporters of the Muslim Brotherhood to death . They were convicted on charges related to violent riots in the southern Egyptian city of Minya in August , including the murder of a police officer , the country 's official news agency said . Only 147 of the defendants were reportedly in court Monday . Sixteen people were also acquitted at the hearing . Tuesday 's case against another 683 defendants relates to the same unrest . Sixty-two of Tuesday 's accused were in attendance for the proceedings at Minya Criminal Court , Meguid said . They had no legal representation in court because defense lawyers boycotted the trial in protest over the death sentences handed down Monday to the 529 Morsy supporters , he said . He was among those boycotting proceedings . Badie , who is being held in custody in the capital , Cairo , did not attend court Tuesday due to security concerns . A verdict is due to be delivered on April 28 . Will Egypt carry out sentence ? Amnesty International : 'Grotesque move ' Monday 's mass sentencing prompted wide criticism , with rights group Amnesty International condemning it as `` a grotesque move . '' `` This is injustice writ large and these death sentences must be quashed , '' said Hassiba Hadj Sahraoui , deputy director for Amnesty International in the Middle East and North Africa . While Egypt 's courts are quick to punish Morsy supporters , Sahraoui said , they `` ignore gross human rights violations by the security forces . '' The Muslim Brotherhood also issued a statement Monday saying the sentence `` violates judicial norms . '' However , the head of the Justice Ministry 's press office , Abdel Azim el-Ashry , rejected criticism in a statement published by Egypt 's State Information Service on Tuesday , saying the court 's ruling was not final and that all the defendants have the right to appeal . He also said the more than 350 defendants sentenced to death in absentia could seek new legal proceedings if they appeared in court . Students protest death sentences . For the second consecutive day , students held a protest at Minya University against the death sentences handed down Monday . Omar Abdel Baset , head of the students ' union , told CNN that security forces had dispersed Tuesday 's demonstration . Several students were injured by pellets that security forces fired at protesters , he said . The demonstration was in support of three students who are among the defendants in Monday 's case . Last summer 's riots in Minya took place after a deadly crackdown by security forces on two large sit-ins in Cairo , where demonstrators were supporting Morsy , the former head of the Muslim Brotherhood 's political arm . Morsy , who was elected president in 2012 , was ousted in a coup in July amid widespread protests against his rule , with opponents accusing him of pursuing a divisive and Islamist agenda . He and other Brotherhood leaders were rounded up after the coup and now face a variety of charges . In December , Egypt 's interim government officially declared the Muslim Brotherhood a terrorist organization . What is the Muslim Brotherhood ? Report : Egypt 's army-backed government resigns . Five killed in clashes between Egyptian police , Muslim Brotherhood protesters . CNN 's Kellie Morgan and Heba Fahmy reported from Cairo , and Laura Smith-Spark wrote from London . CNN 's Susannah Cullinane contributed to this report .
Verdict against at least 529 accused Muslim Brotherhood supporters expected on April 28 . On Monday , 62 supporters of the movement were sentenced to death . The cases relate to violent riots in the southern Egyptian city of Cairo in August . Spiritual leader Hassiba Hadj Sahraoui was not among the 62 defendants in court April 28 .