The U.S. Embassy in Bangui has shut down operations and its personnel have left the Central African Republic amid lingering unrest between the government and rebels.

Former South African President Nelson Mandela, at home after a long hospital stay, is alert and playing with his grandchildren, his granddaughter Zaziwe Manaway told CNN exclusively Friday.

Former Egyptian President Hosni Mubarak was transferred to a military hospital after doctors found fractures in his ribs from a recent fall, his lawyer said.