Ousted Egyptian President Hosni Mubarak is wheeled on a stretcher out of the police academy after his murder trial in Cairo. (AFP)

Former Egyptian President Hosni Mubarak is seen in the courtroom for his trial at the Police Academy in Cairo, in this still image taken from video August 3, 2011. (REUTERS)

Egypt's President Hosni Mubarak delivers a speech in Cairo, Egypt, in this file photo . It is announced by lawyer Farid el-Deeb, that former president of Egypt Hosni Mubarak, who was ousted from power earlier 2011, has suffered a stroke and is in a coma. (AP)

File picture of ousted Egyptian president Hosni Mubarak shows him sitting inside a cage in a Cairo courtroom during his verdict hearing on June 2, 2012. The 84-year-old former strongman, who was sentenced last week to life behind bars for suppressing a revolt against his rule in early 2011, remains in "critical but stable" condition in prison, an interior ministry source told AFP on June 11, 2012, as officials weigh transferring him to a Cairo hospital. during which nearly 850 protesters were killed. (AFP)

Picture taken on November 11, 2006 shows Egypt's ousted president Hosni Mubarak speaking during a meeting in Cairo. The 84-year-old former strongman, who was sentenced last week to life behind bars for suppressing a revolt against his rule in early 2011, remains in "critical but stable" condition in prison, an interior ministry source told AFP on June 11, 2012, as officials weigh transferring him to a Cairo hospital. during which nearly 850 protesters were killed. (AFP)

Hosni Mubarak underwent a surgery in Germany. (REUTERS)

Hosni Mubarak making a call at the University of Heidelberg hospital. (AFP)

Posters depicting Egyptian President Hosni Mubarak in a satircal manner are set prior to the start of a demonstration by Egyptian-Americans in New York. (AFP)