The government of Ethiopia will begin peace negotiation with the Oromo Liberation Army (OLA), a rebel group active in the country's largest and most populous region.
Battles between the forces of two rival generals have turned Khartoum into a war zone, shutting down hospitals and preventing health professionals from providing care.
World nations rush to evacuate their citizens from battle-raged Sudan as hundreds of people have been killed in the ongoing fight between two rival generals since April 15.
Blinken says the Sudanese Armed Forces and the Rapid Support Forces have agreed to implement a nationwide ceasefire starting at midnight on April 24 after intense negotiation over the past 48 hours.
Heavy gunfire shatters 24-hour truce shortly after it was due to take effect amid foreign pressure on warring military factions to halt fighting that has left some 270 people dead and 2,600 wounded.
Loud explosions and heavy gunfire were heard in the capital on Wednesday morning, as witnesses said plumes of thick black smoke emanated from buildings around the army headquarters in central Khartoum.
At least 270 people have been killed and 2,600 others injured in armed clashes between the army and the Rapid Support Forces since fighting broke out in Khartoum and its surrounding areas.