Former Egyptian President Hosni Mubarak has slipped into a 'full coma', CNN reported the Egyptian Interior Ministry as saying on Monday.

Egyptian security officials said that Mubarak's health has deteriorated further, with doctors having to use a defibrillator twice and feed him liquids intravenously.

AFP also quoted a ministry source as saying Mubarak's “heart stopped twice. Doctors had to use a defibrillator. He has been in and out of consciousness and has been refusing food."

The officials said Mubarak's two sons, one-time heir apparent Gamal and wealthy businessman Alaa, were by his side at the intensive care ward of Torah Prison hospital south of Cairo where the 84-year-old former president is serving a life sentence.

The officials, who are at Torah, did not say whether the defibrillator was used because Mubarak's heart stopped or to remedy irregular heartbeats. They spoke on condition of anonymity because they were not authorized to speak to the media.