Sudanese protest groups have called for a general strike, saying negotiations with the military have failed to reach a deal.
Protest and opposition groups are demanding civilian control to oversee a transition from the military dictatorship.
The Sudanese Professionals Association (SPA) said the army was insisting on directing the transition and keeping a majority on the council which is heading the transition.
The impasse has dashed hopes of a quick political solution for the country after the overthrow of Omar al-Bashir in April.
The Sudanese people, like all people, are hostile to military rule. They are trying to avoid a situation like Egypt where the head of the army became the president after the overthrow of Hosni Mubarak.
Protesters have also been pushing for justice over the deaths of scores of demonstrators since December.
With the military retaining power those responsbile for the massacres are still capable of acting further against the population.