Ousted Egyptian president Hosni Mubarak and his wife Suzanne will be interrogated by Egypt's anti-graft agency on charges of misuse of public funds for personal use.
Reuters reported Assem el-Gohari, a senior justice ministry official as saying that an investigation team has moved to the Sinai resort town of Sharm el-Sheikh where Mubarak and his wife Suzanne are staying.
Mubarak's two sons Gamal and Alaa, who were arrested on April 13 are also in detention and are being questioned about alleged misuse of public funds and the violence against the protesters.
Mubarak was forced out of office on Feb. 11 after mass demonstrations ending his three decade rule.
He is currently in custody at the Red Sea resort in Sharm el-Sheikh's military hospital since he suffered health problems under initial questioning by officials from the public prosecutor's office.
One of the rallying points for demonstrators against Mubarak was that he had amassed huge fortunes at the expense of the state, a charge which Mubarak has denied.
Reuters reported that Switzerland's Foreign Ministry had earlier this month said it had found 410 million Swiss francs traced to Mubarak.
Here is a slideshow which gives a sneak peek into Hosni Mubarak's family: