Brotherhood leader Mohammed Badie has been captured in the east Cairo district of Nasr City, say security officials and state television.
Egypt's President Mohammed Morsi has given himself high grades, spending much of a nearly two-hour speech talking about fuel, trash and bread.
Egypt's worst violence in months has escalated clashes between political forces and the ruling military ahead of a landmark presidential election.
Arab leaders will call for Syria to implement a ceasefire, but there's little faith that President Bashar al-Assad will halt his crackdown.
For leaders who seek military intervention in Syria, Baghdad provides a cautionary tale, with violence and sectarian hate persisting a decade later.
Egypt's top prosecutor has charged nine senior police officers with assisting a murderous mob of soccer fans who killed 74 rivals last month.
Egypt's generals have a new enemy: the legions of angry soccer fans who have injected fervour into recent protests demanding the military step down.
Egypt's former strongman Hosni Mubarak has returned to the defendant's metal cage as his trial has resumed after a three-month break.
The trial of Egypt's ousted leader Hosni Mubarak of complicity in the killing of protesters this year has been adjourned until December 28.
Egypt's ruling generals are seeking to enshrine a future role for themselves with considerable independence from civilian leaders.