One month after violence erupted in Sudan on April 15, fighting is continuing between the northeastern African nation's military and the paramilitary group Rapid Support Forces, or RSF.
Media outlets reported that gun battles and shelling continued in the capital Khartoum on Sunday.
The UN Office for the Coordination of Humanitarian Affairs, or OCHA, says at least 676 people have been killed.
The US government has been mediating talks between the Sudanese military and the RSF. It revealed that the two sides agreed to facilitate the delivery of humanitarian aid supplies and protect civilians when they met in Saudi Arabia earlier this month.
The two warring parties are expected to hold a second round of talks in Saudi Arabia starting Sunday to discuss issues concerning humanitarian aid.
The Sudanese military and the RSF have agreed on a truce multiple times, but battles have continued.
The United Nations estimates that about 200,000 people have fled Sudan and at least 700,000 others have been displaced inside the country.
There are mounting concerns that the conflict could create a humanitarian crisis involving nations around Sudan as prospects of a truce remain uncertain.