Egypt's Muslim Brotherhood issued a statement on Wednesday announcing their refusal of the removal of former president Mohamed Morsi, calling the military's move a "coup d'etat."
"We refuse to engage in any work with the usurped authority," added the statement.
The Brotherhood, who Morsi was a member of its Guidance Bureau before his inauguration in June 2012, called on protesters to practice self-restraint and peaceful protesting.
The statement also denounced the "killing, arrests, chaining of media freedom and the closing of TV channels," describing it as tactic of the "oppressive police state."
On Wednesday night, Egypt's military commander-in-chief Abdel-Fattah El-Sisi handed over power to the head of High Constitutional Court Adly Mansour, dismissing Mohamed Morsi from presidency, in response to the demands of millions calling for early presidential elections.
The military statement was rejected by Morsi who issued a statement asserting that he remains president of Egypt and the high commander of the armed forces.
Muslim Brotherhood leader Mohamed El-Beltagy, currently on travel ban for insulting Egypt's judiciary, stated earlier on Wednesday that the removal of Morsi will push some groups to use violent resistance.
Morsi's dismissal was followed by the Muslim Brotherhood-owned television channel Misr 25 going off the air along with several other Islamist-run channels, including the controversial Hafez and Al-Nas.
The ejected president a long with nine leading Islamist figures will be investigated next week by the Egyptian prosecution for insulting the judiciary.