Demonstrators gathered on Saturday afternoon in front of Cairo's High Court of Justice downtown to protest against the Mubarak trial verdicts announced earlier on the same day.
Protesters marched from Tahrir square to the court carrying banners calling for justice for the martyrs and chanting slogans against the trial's verdicts, the Middle East News Agency (MENA) reported. They also called for "purging the judiciary".
Cairo's Criminal Court sentenced deposed president Hosni Mubarak and ex-Interior Minister Habib Al-Adli to life imprisonment after they were convicted of killing protesters in the January 2011 popular uprising.
Yet the court acquitted Al-Adli's six aides of the killing charges and dropped charges of graft and corruption against Mubarak's sons, Gamal and Alaa, due to the expiry of a statute of limitation.
Thousands flocked to Tahrir square chanting slogans against the verdicts and the general attorney.