An Egyptian court overturned Wednesday the death sentence against 149 charged with lynchings of 11 police officers in August 2013 following the army's removal of Islamist president Mohammed Morsi, state-owned al-Ahram newspaper reported online.
Following an appeal, the defendants, who received the verdicts in May last year, will stand retrial before a different court, the report added.
Thirty-four others in the same case who were not in custody could not legally be granted a retrial as they were sentenced to death in absentia.
The 183 individuals, mainly supporters of the Muslim Brotherhood group aligned with Morsi, had been found guilty of an attack on a police station on the western outskirts of Cairo in apparent retaliation for the police's deadly dispersal of Islamist protest camps on the same day.
A widely seen video from the scene at the Kerdassa police station in Giza province showed dead and injured police officers sitting lined up against a wall as they were abused by a crowd.
Only one of the station's staff survived. Two civilians caught up in the attack were also killed.
The lynchings took place hours after police broke up the Rabaa al-Adawiya sit-in in eastern Cairo. More than 800 Islamist protesters were killed in the operation, according to a death toll compiled by Human Rights Watch.
Supporters of Egypt's first elected president, Morsi, a leading member of the Muslim Brotherhood, had camped at the site for six weeks. The protest was mounted after then army chief Abdel-Fattah al-Sissi deposed Morsi in the wake of mass protests calling for the president to resign.