The National Salvation Front, Egypt's main opposition alliance, congratulated the nation on Thursday on the ouster of Islamist President Mohamed Mursi.
Egypt's army ousted President Mohamed Mursi on Wednesday, responding to the calls of millions who had taken to the streets to voice their opposition to him.
The army, along with political and religious forces, delegated the head of the constitutional court as an interim president. He was sworn into office earlier on Thursday.
"We confirm our strong belief in the right of all political groups to express their opinions freely, and to form their own political parties. We totally reject excluding any party, particularly political Islamic groups," the NSF said in a statement on Thursday.
It insisted that what Egypt witnessed yesterday is "not a military coup by any standards," but expressed appreciation for the army for siding with the people.