Egyptian President Mohammed Morsi has ordered the retirement of the powerful head of the country’s armed forces, Field Marshal Hussein Tantawi, a presidential spokesman has said.
No explanation has so far been given.
President Morsi, who was elected in June, is a member of the Muslim Brotherhood.
Relations between the Brotherhood and the military have been tense since the fall of President Hosni Mubarak last year.
Before Mr Morsi was sworn in, the Supreme Council of the Armed Forces (Scaf) dissolved the Egyptian Parliament, which is dominated by the president’s Islamist allies.
The military council, under Gen Tantawi’s leadership, also stripped the presidency of many of its powers.