The head of Egypt's Constitutional Court, Adli Mansour, was sworn in as interim president on Thursday, a day after the army ousted Mohamed Morsi as head of state.
Speaking at the Constitutional Court in Cairo, Mansour said he planned to hold new elections, but did not specify when.
He said Egypt had "corrected the path of its glorious revolution" through mass street protests calling for Morsi's resignation, which ultimately sealed his fate.
The Egyptian prosecutor’s office ordered on Thursday the arrest of the Muslim Brotherhood’s top leader, Mohamed Badie, and his deputy, Khairat el-Shater, judicial and army sources said, after the military overthrew President Mohamed Morsi.
Shater, a wealthy businessman seen as the Brotherhood’s top political strategist, was the group’s first choice candidate to run in last year’s presidential election.
But he was disqualified from the race due to past convictions, forcing Morsi to take his place.