The leaders of Sudan’s seven neighbors agreed Thursday on the importance of launching dialogue among the country’s warring sides.

Leaders of Egypt, Ethiopia, Eritrea, Chad, South Sudan, Central African Republic and Libya as well as of the African Union and Arab League met in Cairo to discuss the war and its regional impact.

In a joint statement following the summit, they called on the warring parties to commit to a ceasefire, appealed to regional states not to interfere in the conflict, and agreed to facilitate delivery of aid.

They also warned of the possibility of Sudan’s fragmentation or “descent into chaos that could lead to the spread of terrorism and organized crime,” and called on the international community to meet aid pledges made last month.

Conflict between Sudan’s army and the Rapid Support Forces (RSF) broke out in the capital Khartoum in April and has triggered a sharp surge of violence in the troubled Darfur region as well as fighting in North and South Kordofan and Blue Nile states.

“All of our brothers in Sudan must uphold the supreme interest and keep Sudan’s politics and unity away from external interference that seeks to achieve narrow interests,” Egyptian President Abdel Fattah al-Sisi told the summit.

Sisi hailed the “noble efforts” of Sudan’s neighbors in “receiving hundreds of thousands of refugees with limited resources in an extremely difficult global economic situation.”

He called on the international community “to honor the commitments” made last month when donors pledged $1.5 billion in aid — less than half the estimated need for Sudan and its affected neighbors.