Sudanese protest leaders have said they will continue to push for a civilian-led transitional authority during talks with the military council on Sunday.
The Alliance for Freedom and Change said it is determined that the country's new ruling body will be "led by a civilian as its chairman and with a limited military representation," it said in a statement.
The protesters' umbrella group said talks would resume with the military council - which has ruled Sudan since president Omar al-Bashir was deposed on April 11 - at 9:00pm local time (19:00GMT) on Sunday.
The two sides have been divided over the composition of the transition authorities. Both want a majority of seats on the 11-member sovereign council, which would operate as the top tier of power during the planned transition period.
They had been expected to meet for negotiations over the issue earlier in the week, but the Transitional Military Council (TMC) suspended talks with the alliance for 72-hours early on Thursday.
It cited a deteriorating security situation in the capital Khartoum where demonstrators had erected roadblocks on several key avenues.
Before talks were suspended, the two sides had agreed on several key issues, including a three-year transition period and the creation of a 300-member parliament, with two thirds of lawmakers to come from the protesters' umbrella group.
Protesters placed roadblocks on some avenues in Khartoum, paralysing large parts of the capital to put further pressure on the generals during negotiations, but the military rulers suspended the last round of talks and demanded the barriers be removed.
Demonstrators took the roadblocks down in recent days -- but they warn they will put them back up, if the army fails to transfer power to a civilian administration.
The generals have allowed protesters to maintain their sit-in outside Khartoum's army headquarters.
The deputy head of the military council, General Mohammed Hamdan Dagalo, better known as Hemedti, said late on Saturday that security forces had arrested those behind an attack on the protesters last week that killed at least five people, including an army officer.
Both the military and the protesters had blamed the attack on al-Bashir loyalists.
"The assailants who opened fire (on protesters) have been caught. Their confessions will be broadcast on TV," said Dagalo, who heads the paramilitary Rapid Support Forces.
'Free and fair elections'
He hailed the protesters, for their role in al-Bashir's military overthrow on April 11.
"We want the democracy they are talking about. We want a real democracy, fair and free elections. Whoever the Sudanese choose will rule," he said.
Separately on Saturday, Sudanese Islamist movements held their own demonstration outside the presidential palace in downtown Khartoum on Saturday night.
Hundreds took part in the rally, the first organised mobilisation by Islamist groups since Bashir's ouster.
"The main reason for the mobilisation is that the alliance (the main protesters' umbrella group) is ignoring the application of sharia in its deal," said Al-Tayieb Mustafa, who heads a coalition of about 20 Islamic groups.
Role of Islamic law
"This is irresponsible and if that deal is done, it is going to open the door of hell for Sudan," he told AFP.
Bashir came to power in an Islamist-backed coup in 1989 and Sudanese legislation has since been underpinned by Islamic law.
At Saturday's rally, hardline Muslim scholar Mohamed Ali Jazuli had a warning for the military council.
"If you consider handing over power to a certain faction, then we will consider it a coup", he vowed as supporters chanted "Allahu Akbar".
The protest leaders have so far remained silent on whether Islamic law has a place in Sudan's future, arguing that their main concern is installing a civilian administration.
Meanwhile, Saudi Arabia's finance ministry said on Sunday the kingdom has deposited $250 million into the Sudanese central bank.
The move will strengthen Sudan's "financial position, alleviate pressure on the Sudanese pound and achieve more stability in the exchange rate,' the statement said.
In April, Saudi Arabia and the United Arab Emirates pledged to send $3bn worth of aid to Sudan, $500 million of which would be deposited in the central bank while the rest would be sent in the form of food, medicine and petroleum products.