Protest leaders in Sudan have said they have broken off contact with the ruling military council that replaced ousted leader Omar al-Bashir.
They accused the military council of being composed of “remnants” of Mr. Bashir’s regime.
Thousands of protesters have gathered outside army HQ in Khartoum for a meeting to announce a civilian council they now want to take power.
The military says it is committed to handing over power and will consider a joint military-civilian council.
However, protest movement spokesman Mohamed al-Amin said they now considered the military council an “extension of the regime” and vowed to escalate the protests.
The campaign to remove Mr Bashir has been spearheaded by the Sudanese Professionals Association (SPA) and it was behind the announcement of the civilian council.
The SPA held talks with the military on Saturday.
A senior SPA member, Ahmed al-Rabia, initially indicated this might delay the naming of the council but on Sunday he confirmed the announcement would go ahead at the Khartoum protest site.
The protesters want their new council to form a transitional government, leading to elections.
On Sunday it said it would respond to the call for civilian rule within a week, and indicated it might favour a joint council.
It has, however, released political prisoners and on Saturday arrested a number of top members of Mr Bashir’s former ruling party.