The April 6 Youth Movement said that it will begin a sit-in on Tuesday in Cairo's Tahrir Square, lasting until the ruling military council hands over power to a civilian presidential council, dpa reported.
"The volatile situation now urges us all to unite and forget our political or intellectual affiliations and uphold the interest of the country," the movement said in a statement.
They said the presidential council should include three presidential hopefuls - Mohamed ElBaradei, Abdel Moneim Abul Fotouh, Hazem Salah Abu-Ismail - as well as a member of the Supreme Council of the Armed Forces and Judge Zakariya Abdel Aziz.