Egypt crisis: 'Ugly scene' as Cairo protesters clash
5 December 2012 Last updated at 18:16 GMT
Rival protesters have clashed outside Egypt's presidential palace in Cairo, as unrest grows over a controversial draft constitution.
Petrol bombs were thrown and a number of people were injured, amid reports of shots being fired.
Supporters of President Mohamed Morsi dismantled tents set up outside the presidential palace by Morsi critics.
Vice-President Mahmoud Mekki has said a referendum on the draft will go ahead on 15 December despite the unrest.
Jon Leyne reports from Cairo.