CAIRO: “Stop this brutal massacre,” said presidential hopeful Mohamed el-Baradei to the Central Security Forces, calling for a stop to security violence against demonstrators in Tahrir Square. El-Baradei wrote via Twitter on Tuesday, November 23 condemning firing at protestors with live ammo and nerve paralyzing gases. RELATED STORIES: - Teargas forced activists and protestors to leave Tahrir Square - In Pictures: Tahrir clashes continue for fourth day - Increase in clashes between security forces and demonstrators in Tahrir Square - National committees control Tahrir Square, tension at Mohamed Mahmoud St. - Political powers to discuss Tahrir events' repercussions - ElBaradei slams 'massacre' in Egypt's protests - Renewed clashes between protestors, police in Mohamed Mahmoud - Police use internationally banned gas to disperse demonstrators - 30 dead in Egypt clashes: health ministry - Min of Interior officials summoned over Tahrir clashes - Baradei: Live bullets, nerve agents used against Tahrir protesters - Abu Ismail calls on demonstrators not to leave Tahrir Square