Egypt's judges have joined the stand-off between the country's Islamist President and democracy activists.
They said Mohamed Morsi has delivered an "unprecedented attack" on their independence after granting himself supreme powers.
Some went on strike as riot police clashed with youths on the streets of Cairo.
Leading democracy advocate Mohammed ElBaradei said dialogue with Egypt’s Islamist president was not possible until he rescinds his decrees giving himself near absolute powers.
Mr ElBaradei said he is hoping for a “smooth transition without plunging the country into a cycle of violence”.
But he said that may not be possible unless Mr Morsi rescinds the decrees.
Mr ElBaradei, a Nobel Peace laureate for his past work as the head of the UN nuclear watchdog, has formed a National Salvation Front with other liberal and secular leaders, trying to unify the opposition against Mr Morsi.