Youth groups that helped organise mass protests in Egypt which led the army to remove Islamist President Mohamed Mursi have warned the country’s interim president to heed the public will.

A coalition of activist groups and political parties are calling for further protests later on Sunday in support of the army-backed ouster of Mursi on July 3rd.

But Egypt’s political transition after what some are calling a ‘coup’ and others a popular revolt, has stumbled at the first hurdle, as the choice of liberal politician Mohamed ElBaradei as interim prime minister was thrown into doubt by Islamist objections.

Sharif al-Rumi of the 6th April Youth Movement, said Nobel Prize winner ElBaradei was the logical choice to be prime minister.

“ElBaradei must be the next prime minister because he represents the revolution and because he sparked the first revolution in Egypt when in 2010 he founded the National Council for Change with his seven demands for constitutional change in 2010,” he said.

Mursi’s Muslim Brotherhood movement also called for further protests on Sunday after dozens of people were killed and more than 1,000 wounded on Friday in clashes between his supporters, opponents and the military.

The head of Egypt’s Constitutional Court, Adli Mansour, was named as the new interim president by the army following Mursi’s ouster.

On Sunday, youth activists condemned the recent outbreak of violence and warned the new administration not to defy the public’s desire for change.

“We say to the current president and to the future prime minister: you have two choices: either you are with the revolutionaries or you can be with the enemies of the Egyptian state and the Egyptian people. All of us, as Egyptian youth, are there in the streets and public squares until we achieve the aims of the revolution, which is bread, freedom and social justice, in addition to justice for the martyrs. We are all against the shedding of Egyptian blood,” al-Rumi said.

ElBaradei’s nomination had been confirmed by several sources and state media on Saturday, but just before midnight a presidential spokesman told reporters that the prime minister had not in fact been chosen.

The abrupt U-turn came amid opposition to the appointment by the Nour Party, Egypt’s second Islamist force after Mursi’s Muslim Brotherhood movement; highlighting the challenge the military faces in finding consensus among liberals and conservatives on who should run the country.