Mubarak was transferred to a military hospital from the Cairo prison hospital where he has been kept since his June 2 conviction and sentencing for failing to stop the killing of protesters during the uprising.
The state run media said that Mubarak was ‘clinically dead’ when he arrived at the hospital and that doctors used a defibrillator on him several times.
His wife Suzanne was by his side in the Nile-side hospital in Maadi, Cairo, The Daily Mail reports.
According to the paper, security officials said a team of 15 doctors, including heart, blood and brain specialists, was supervising the condition of Mubarak, who needed help with his breathing.
Mubarak, 84, was convicted of failing to prevent the killing of some 900 protesters during the 18-day uprising that forced him out of office in February 2011.
He and his two sons, onetime heir apparent Gamal and wealthy businessman Alaa, were acquitted of corruption charges.