The truce, signed Monday by both sides in the conflict, aims to ensure safe passage for humanitarian aid and pave the way for broader talks sponsored by the United States and Saudi Arabia.
On Saturday, witnesses said Khartoum was experiencing some calm, although sporadic clashes were reported overnight.
In a statement, the RSF accused the army of violating the truce and launching an airstrike that destroyed the mint company.
On Friday, the army accused the RSF of targeting the same company.
Meanwhile, the military said its invitation to reserve forces on Friday was a partial mobilization and a constitutional measure, and added that it expects large numbers to respond to the invitation.
The conflict that erupted on April 15 has killed at least 730 civilians and displaced 1.3 million Sudanese from their homes, either abroad or to safer areas inside the country.
Those who remain in Khartoum suffer from the collapse of services such as electricity, water and communication networks, while looters loot homes, mainly in affluent neighborhoods.
Sudanese police said they were expanding their deployment and also brought in capable retirees to help.
Ahmed Saleh, 52, a resident of the city, said: “We have become displaced, moving from one place to another. We cannot return to our homes, which have been completely looted and have become military zones. Service collapsed and chaos ensued. widespread in Khartoum.”
He added, “No party is interested in helping the Sudanese citizen, be it government or international parties. We are human beings, where is humanity?
Aid agencies say that, despite the truce, they are struggling to secure government and security guarantees to transfer aid and staff from the safer parts of the country to Khartoum and other hotspots.
Rape reports
The fighting also spread to the fragile region of Darfur, with its greatest impact on the western town of El Geneina, which was attacked by local groups who destroyed infrastructure and killed hundreds of people.
The Violence Against Women and Children Unit, a government agency, said on Friday evening it had received reports of 25 cases of rape of women and girls in Darfur and 24 in Khartoum since the start of the conflict.
And she added: “The unit expresses deep concern at reports of sexual assaults and mass abductions in outlying areas of Khartoum, and that women and girls are at risk of being victimized. ‘sexually assaulted when looking for food and services’.
The Rapid Support Forces deny the involvement of its soldiers in sexual assaults or looting.
Read the Latest World News Today on The Eastern Herald.