Twelve alleged Black Bloc members were arrested Friday night for attacks on Egypt's High Court in downtown Cairo, the deputy of the Prosecutor-General of North Cairo Court Wael Hassan tells Ahram Online.

The suspects were arrested within the High Court perimeter and are believed to belong to the black-clad anarchist-inspired youth group opposed to Islamist President Mohamed Morsi.

Hassan details to Ahram Online that the 12 were referred to investigation Saturday for their alleged involvement in inciting violence around the High Court area and face charges of vandalism and rioting.

A number of masked young men reportedly attempted to attack the High Court Friday evening, tossing Molotov cocktails at the courthouse and clashing with street vendors near the area.

Black Bloc made its first appearance on the eve of the second anniversary of Egypt's January 2011 revolution with the primary aim of fighting the Muslim Brotherhood, from which President Mohamed Morsi hails. Members of the group typically dress in black and mask their faces.

Several members who allegedly belong to the group have been arrested after other violent anti-government protests.