Ethiopia, Egypt, and Sudan have traded accusations as talks in Kinshasa regarding the controversial Ethiopian Renaissance Dam ended without progress.
Analysis: Ethiopia's contested dam on the Nile has pitted it against both Egypt and Sudan, with a border dispute between Khartoum and Addis Ababa further complicating strained relations.
Sudan has abolished an Israel boycott law that has been active since 1958 in the latest development in the normalisation of ties between the two countries.
Talks gathering Egypt, Ethiopia and Sudan on Addis Ababa's contested dam on the Nile were being extended on Tuesday.
50 people have been killed in four days of violence in Sudan's Darfur.
US Secretary of State Antony Blinken pressed for an easing of tensions between Sudan and Ethiopia as fears grow of a spillover from the bloody Tigray conflict.
At least 40 people have been killed and 58 injured in three days of clashes in Sudan's West Darfur state, the United Nations said Monday.
More bloodshed occurred over the weekend in intercommunal strife which often sees nomadic Arab pastoralists pitted against settled non-Arab farmers.
The United States Special Presidential Envoy for Climate attended the regional climate dialogue, where MENA countries re-committed to the Paris Agreement.
As the talks on the Nile dam Ethiopia is building are reaching their final stage, Egypt considers them the last opportunity to find an agreement.