Thousands of demonstrators continued to rally in support of demands for civilian rule, despite an apparent attempt to disperse them following the army's removal of President Omar al-Bashir last week.
Read more: Sudan military 'trying to steal the revolution'
"We want the military council to be dissolved and be replaced by a civilian council having representatives of the army," said Mohamed Naji, a senior leader of the Sudanese Professionals Association.
The organization also demanded the sacking of the country's judiciary chief and prosecutor general.
African Union gives army 15 daysThe African Union on Monday gave Sudan's military 15 days to hand over power to a civilian government.
Should the army fail to achieve this, Sudan's membership in the bloc would be automatically suspended until a return to constitutional order, the AU's Peace and Security Council said.
The AU said Sudan must hold "free, fair and transparent elections" as soon as possible.
Angela Merkel calls for civilian governmentThe SPA's latest demands came as the military council faced increasing public and diplomatic pressure to hand over power to a civilian administration.
German Chancellor Angela Merkel called for "a rapid transfer of power to a civilian transitional government," in a phone call with Egyptian President Abdel Fattah el-Sissi.
"This must be followed by a credible, inclusive political process that meets the expectations of the Sudanese people with regard to economic and political reforms," her office said in a statement.
Sissi repeated Egypt's support for "the brotherly Sudanese people's will" and said Cairo would "not interfere in its internal affairs", according to a presidential statement.
Their comments come a day after the Khartoum embassies of Britain, the United States and Norway issued a joint statement calling for "inclusive dialogue to effect a transition to civilian rule".
law/dj (AFP, dpa)
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