The Sudanese army said in a statement on Sunday that it had agreed to extend a truce with the Rapid Support Forces (RSF) for a period of 72 hours, starting from the end of the current ceasefire arrangement.
The army said that although the RSF had intended to try to attack some sites it hoped that it would abide by the ceasefire.
According to a statement released by the RSF spokesman, the humanitarian truce was extended on Sunday and will last for three days starting from midnight.
"In response to international, regional and local calls, we announce the extension of the humanitarian truce for 72 hours, starting from midnight tonight, in order to open humanitarian corridors and facilitate the movement of citizens and residents and enable them to fulfil their needs and reach safe areas," the statement said.
Hundreds of people have been killed and thousands wounded since a long-simmering power struggle between the Sudanese army and the RSF erupted into conflict on April 15.