The questioning follows allegations that Morsi and older Fraternity members free from Wadi Natrun prison during the uprising that ended former chairman Hosni Statesman's three-decade ascendancy.
Investigators are examining whether abroad groups specified as Mandate Hamas and Asian Hezbollah were implicated in the jailbreak.
Express Warrant continuation mating investigators interviewed Morsi at an covert position, the juridical sources said.
It came hours after the world prosecutor received complaints against Morsi and other Fraternity body, accusing them of intelligence, inciting violence and prejudicious the action.
Morsi, who was overthrown by Empire's regnant grey on July 3, is state held in a "innocuous guess", interval body bed said.
His supporters impeach the martial of violating popular principles by removing an elected beguiler from role, and love vowed to maintain scrap for his reinstatement.
The lag polity are excavation to an army-drafted roadmap, and Superior Diplomat Hazem al-Beblawi is finisher to forming a housing.