A group of Egyptian judges says the Muslim Brotherhood's political party should be dissolved. Their recommendation will be presented to a Cairo court later this month.
It's just the latest measure in a countrywide crackdown against the Brotherhood and comes after a weekend of deadly clashes across Egypt.
Egypt's national celebration marking the 40th anniversary of the Yom Kippur War turned violent Sunday when members of the Muslim Brotherhood, supporters of ousted Islamist President Mohammed Morsi, clashed with security forces.
Every year, Egypt commemorates the war with military performances and flyovers to celebrate the return of the Sinai Peninsula as part of the 1979 peace treaty with Israel.
On Sunday, thousands of Muslim Brotherhood supporters clashed with security forces as they marched toward Tahrir Square in Cairo. Security forces initially used tear gas to subdue the crowd, but later, live fire could be heard in the clashes, Egypt's official MENA news agency reported.
Security forces arrested 423 demonstrators in Cairo and Giza, according to Egypt's Interior Ministry.
Since Morsi's ouster on July 3, his supporters have organized thousands of protestors to demand his reinstatement. The protests often turn violent as the Islamists vent their anger over what they see as a breach of a democratically elected leader.
On Sunday, 51 people were killed and more than 250 injured, according to al Ahram.
The death toll is the highest since Aug. 14, when the military broke up two massive protest camps of Morsi supporters in Cairo and Giza.