Cairo - A Cairo court on Monday banned the opposition April 6 Youth Movement that was a catalyst in the uprising to oust former president Hosni Mubarak in 2011.
The court banned all activities of the movement, on charges of espionage and defaming the state.
Lawyer Ashraf Saeed filed the lawsuit calling on interim president Adly Mansour and the government to freeze the movement's activities and confiscate its offices.
The April 6 group was launched in 2008, promoting the call for a nationwide strike to be held on April 6 in solidarity with workers' strikes.
The group supported Mohammed Morsi against his rival, Ahmed Shafiq - Mubarak's last premier in the 2012 elections. However, the group later protested against Morsi and joined calls for early presidential elections saying the country's first freely elected president had failed to achieve the revolution's demands.
Two of the movement's senior leaders are now in prison after they were convicted for protesting illegally and assaulting police.
The same court, the Court for Urgent Matters, previously banned the Muslim Brotherhood as well as the activities of the Palestinian movement Hamas in Egypt.
Two weeks ago, it declared the Sinai-based militant group Ansar Beit al-Maqdis a terrorist organisation.