The Independent reported on Thursday.
The prison officials said that the 84-year-old was suffering from breathing problems, high blood pressure, and depression. He was immediately transferred to the prison hospital after Saturday's verdict.
Before the verdict, he was kept in the military-run International Medical Centre on the outskirts of the Egyptian capital.
Also on Saturday, Mubarak’s Interior Minister Habib al-Adli was likewise sentenced to life in prison on a similar charge.
Mubarak’s verdict sparked fierce clashes between the families of the victims and security officials inside the court as angry spectators called the court illegitimate and demanded that he be executed.
Thousands of people have also held demonstrations across the country, calling for the execution of the former dictator.
The health condition of the ousted Egyptian dictator, Hosni Mubarak has deteriorated sharply since his recent transfer to the Torah prison in southern Cairo where he is serving his life sentence, security officials say.
Doctors have had to use a respirator five times since Saturday when he was sentenced to life in prison for the killing of nearly 900 pro-democracy protesters during the country’s revolution last year,