Egypt’s prosecutor general has ordered that the assets of 14 top Muslim Brotherhood leaders be frozen, judicial sources have announced.

According to the reports, Hisham Barakat issued his order on Sunday as part of an investigation into deadly incidents, since the ouster of Egyptian President Mohamed Morsi, including Cairo clashes in which over 50 people were killed.

On July 8, Egypt’s Health Ministry and emergency services said that more than 50 people had been killed during the clashes between the army and Morsi supporters outside the Republican Guard barracks in Cairo.

The army said it had confronted a group of armed men who were trying to enter the building. The army spokesman went on to say that a soldier and a police officer were shot dead in the attack.

The decree affects nine Muslim Brotherhood leaders, including its head Mohamed Badie, his deputy, Khairat El-Shater, and the deputy head of the Brotherhood's political party, Essam El-Erian, plus five figures of other groups, among with Gamma Islamiya, judicial sources said.

The judicial ruling came on the same day as the Egyptian prosecutors began questioning the deposed president Morsi and the members of Muslim Brotherhood party over their involvement in a 2011 prison break.

It was alleged that Morsi along with about 30 senior Muslim Brotherhood members escaped from Wadi Natrun Prison during the uprising that toppled former dictator Hosni Mubarak two years ago.

The ousted president and his colleagues are also accused of spying, inciting violence and damaging the economy.