Unidentified thugs clashed on Saturday evening with supporters of former presidential candidate Hazem Salah Abou Ismail, who have been camping in the Abasseya area of Cairo, near the Ministry of Defense,

Thugs used Molotov cocktails to attack the protesters who threw rocks back at them. 

Several injuries have been reported by witnesses, while a field hospital was already set up. 

Abou Ismail's supporters have staged a sit-in near the Ministry of Defense since Friday night to protest the exclusion of the Salafi preacher from the presidential race.