Egyptian officials say 2 sons of ousted President Hosni Mubarak have been freed from prison

FILE - This combination Jan. 6, 2011 file images show Gamal Mubarak, left, and Alaa Mubarak, right, attending a Christmas Eve Mass at the Coptic cathedral in Cairo, Egypt. Egyptian security officials said the two sons of ousted President Hosni Mubarak have been released from prison, nearly four years after they were first arrested along with their father. (AP Photo/File) (The Associated Press)

FILE - In this Tuesday, Jan. 17, 2012 file photo, Gamal Mubarak, son of former Egyptian president Hosni Mubarak, left, arrives at a court house in Cairo, Egypt. Egyptian security officials say two sons of ousted President Hosni Mubarak have been released from prison, nearly four years after they were first arrested along with their father. (AP Photo/Mohammed al-Law, File) (The Associated Press)

FILE - In this Saturday, June 2, 2012 file photo, The two sons of ex-President Hosni Mubarak, Gamal, left, and Alaa Mubarak, right, arrive to the police academy courthouse in Cairo, Egypt. Egyptian security officials say two sons of ousted President Hosni Mubarak have been released from prison, nearly four years after they were first arrested along with their father. (AP Photo, File) (The Associated Press)

The two sons of ousted Egyptian President Hosni Mubarak were released from prison Monday, nearly four years after they were first arrested along with their father, authorities said.

Security officials said the pair, wealthy businessman Alaa and Mubarak's one-time heir apparent Gamal, walked free from Torah Prison in a southern Cairo suburb shortly after daybreak and headed to their respective homes in the capital's upscale Heliopolis suburb.

Interior Minister Mohammed Ibrahim, who is in charge of police and prisons, confirmed the release of the two, but would not say when they walked free. There has been intense speculation among activists in Cairo that they may actually have been secretly freed over the weekend.

The two, along with their father, still face a retrial on corruption charges, for which a date has yet to be set. Separately, the two sons also face trial on insider trading charges. Hearings resume in March. They had been acquitted of other charges.

Mubarak, 86 and ailing, stepped down in February 2011 in the face of a popular uprising. He and his two sons were arrested in April that year. Mubarak remains at a military hospital in a southern Cairo suburb although there are no longer any legal grounds for his detention