Donors pledged more than 2 billion euros ($2.13 billion) for war-torn Sudan at a conference in Paris on Monday, French President Emmanuel Macron said, on the first anniversary of what aid workers describe as a neglected but devastating conflict.

Efforts to help millions of people driven to the verge of famine by the war have been held up by continued fighting between the army and the paramilitary Rapid Support Forces (RSF), restrictions imposed by the warring sides, and demands on donors from other global crises including in Gaza and Ukraine.

Conflict in Sudan is threatening to expand, with fighting heating up in and around al-Fashir, a besieged aid hub and the last city in the western Darfur region not taken over by the RSF. Hundreds of thousands of displaced people have sought refuge in the area.

"The world is busy with other countries," Bashir Awad, a resident of Omdurman, part of the wider capital and a key battleground, told Reuters last week. "We had to help ourselves, share food with each other, and depend on God."

In Paris, the EU pledged 350 million euros, while France and Germany, the co-sponsors, committed 110 million euros and 244 million euros respectively. The United States pledged $147 million and Britain $110 million.

Speaking at the end of the conference, which included Sudanese civilian actors, Macron emphasized the need to coordinate overlapping and so far unsuccessful international efforts to resolve the conflict and to stop foreign support for the warring parties.