NEW : Three arrested American students identified . PM : Prime Minister appeals for calm , urging protesters to go home . Official : Field Marshal Mohamed Hussein Tantawi , head of Egypt 's Supreme Council of the Armed Forces , will address the nation Tuesday , according to Egyptian state broadcaster Al Masriya . Twenty - nine people have been killed since Saturday , many protesters . Some political factions announce a ` ` million man sit - in '' on Tuesday .
NEW : Three arrested American students identified . PM : Prime Minister appeals for calm , urging protesters to go home . Official : Twenty - nine people have been killed since Saturday , many protesters . Some political factions announce a ` ` million man sit - in '' on Tuesday .