BBC News with Marion Marshall
Demonstrators have been making their way to Tahrir Square in Cairo after the Egyptian constitutional court ruled that last year's elections breached the constitution and should be rerun. Jon Leyne reports from Cairo.
With the Supreme Constitutional Court surrounded by barricades and with soldiers and police keeping out protesters, the judges gave what may be the most important ruling in their history. First they confirmed that Ahmed Shafik can stand in this weekend's presidential election despite a law banning former Mubarak regime officials. Then the real bombshell - the court ruled that the parliamentary elections last year were unconstitutional. The chief judge then made it clear he believed parliament should be dissolved and the whole election rerun. The Muslim Brotherhood presidential candidate Mohamed Morsi said that the decision had to be respected though another senior Muslim Brotherhood figure condemned it as a full-fledged coup and vowed to fight it whatever the cost.
UN monitors in Syria say there was a strong stench of dead bodies in the air as they finally managed to enter al-Haffa, the mountain town where both sides have predicted a massacre. After days of heavy fighting between government forces and opposition fighters, the observers said the town appeared deserted. Most government institutions have been set on fire, shops have been looted and private homes ransacked. They said the number of casualties in the town remained unclear.