Investigators began questioning Egypt’s ousted President Mohammad Mursi and members of his Muslim Brotherhood on Sunday over their involvement in a 2011 prison break, AFP reported.

Investigators began questioning Egypt's ousted President Mohammad Mursi and members of his Muslim Brotherhood on Sunday over their involvement in a 2011 prison break, AFP reported.

The inquiry follows allegations that Mursi and senior Brotherhood members escaped from Wadi Natrun prison during the uprising that ended former president Hosni Moubarak's three-decade rule.

State Security prosecution service investigators interviewed Mursi at an undisclosed location, AFP quoted judicial sources as saying.

It came hours after the public prosecutor received complaints against Mursi and other Brotherhood leaders, accusing them of spying, inciting violence and damaging the economy.