Al-Ahram has live updates from the rally.
There will be 3 major rallies in Cairo and Giza that will head to Tahrir at 5 PM :
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One from Mostafa Mahmoud mosque in Mohendessin Giza
One from El Fatah mosque in Giza too “It will be led by Amr Hamzawy”
One from Shubra roundabout “It will be led by Mohamed ElBaradei and George Ishak
There will be also rallies organized in the governorates against the constitutional declaration in Alexandria, Fayoum, Kafr El Sheikh, Sohag and Damietta as well in Sharm El Sheikh south Sinai.