The last prime minister under ex-Egyptian dictator Hosni Mubarak says he will support army chief General Abdel Fattah al-Sisi

“We would all support him and I am the first one to support him. If al-Sisi is nominated I will not run,” Ahmed Shafiq, who lost Egypt's first presidential election to Morsi last year following 2011 revolution that toppled Mubarak, said on Monday.

Al-Sisi, pushed aside Morsi on July 3, and declared that the head of the Supreme Constitutional Court, Adly Mansour, had been appointed as the new interim president of Egypt.

The army also suspended the constitution and dissolved the parliament.

On July 5, the Muslim Brotherhood's supreme guide Mohamed Badie said the move against Morsi was illegal and millions would remain on the streets until the reinstatement of the ousted president.

The army-appointed government has launched a bloody crackdown on Morsi supporters ever since his ouster and arrested more than 2,000 Brotherhood members, including Badie, who was detained on August 20.

Nearly 1,000 people were killed in a week of clashes between Morsi supporters and security forces after police dispersed their protest camps in a fatal crackdown on August 14.

The massacre sparked international condemnation and prompted world bodies to call for an independent investigation into the violence.