The Latest Breaking News from Martin Griffiths

About 42,000 people are at risk from flooding in Ukraine after a hydroelectric dam in the Russian-occupied town of Nova Kakhovka was breached in what UN chief Antonio Guterres called a "monumental" catastrophe on a humanitarian, economic and ecological level.

The breach of Ukraine's Nova Kakhovka dam is possibly the "most significant incident of damage" since the Russian invasion, a UN boss says.

The U.N. aid chief said on Monday efforts will continue in coming days to extend a deal allowing the safe Black Sea export of Ukraine grain, a pact Russia has threatened to quit on May 18 over obstacles to its grain and fertilizer exports.

Envoys from warring parties are in Saudi Arabia for talks that mediators hope will bring an end to the conflict.

Gunfire and explosions could be heard in Khartoum for a 20th straight day on Thursday after the latest ceasefire expired on Wednesday. Earlier, UN chief Antonio Guterres acknowledged the international community had "failed" Sudan. The UN refugee agency also reiterated calls for donors to help support the thousands of civilians…

The UK’s final flight departed Port Sudan on Wednesday evening.

The war in Sudan could become a “tragedy of global significance”, the United Nation’s aid chief has warned, as the last British evacuation flights left the country.

UN Secretary-General Antonio Guterres has described the current situation in Sudan as "deeply concerning," reiterating his warnings of the conflict spreading to neighboring countries. Guterres spoke at a press conference in Nairobi, Kenya, and addressed the developments in Sudan and the clashes that began on April 15 between the Sudanese…

The UN and other humanitarian agencies are seeking detailed guarantees of safe passage from warring factions in Sudan after six aid trucks were looted.