The United Kingdom has urged the United Nations Security Council to push for an immediate cessation of hostilities and a return to inclusive political dialogue involving all parties — including the opposition group led by detained First Vice President Dr. Riek Machar — as the only viable way to resolve South Sudan’s deepening crisis.

Speaking at a Security Council meeting on Friday, UK Deputy Permanent Representative Ambassador Archie Young warned that renewed fighting between the main signatories to the 2018 peace agreement is worsening an already dire humanitarian situation, displacing civilians and exposing them to serious abuses.

“The only solution to the current crisis in South Sudan is the immediate cessation of hostilities and a return to inclusive dialogue with all stakeholders,” Young said.

He cited UN reports of grave human rights violations, including conflict-related sexual violence and the recruitment of children, as well as deadly violence in Akobo that has killed civilians, destroyed infrastructure, and displaced large numbers of people.

Young noted that key provisions of the 2018 Revitalized Peace Agreement — such as security sector reforms and the constitution-making process — remain largely unimplemented, weakening the fragile power-sharing arrangement.

Machar was suspended as First Vice President, detained in March 2025, and is now facing treason charges before a special court over his alleged role in attacks in Nasir County.

The UK diplomat called on South Sudanese leaders to meet their obligations under international law by protecting civilians and allowing unhindered humanitarian access.

He welcomed renewed diplomatic efforts, including the appointment of former Tanzanian President Jakaya Kikwete as African Union special envoy, and coordination among the UN, African Union, IGAD, and international partners such as the Troika.

Young also criticised South Sudanese authorities for restricting the operations of the UN Mission in South Sudan (UNMISS), saying such obstruction undermines civilian protection and humanitarian support.

The Security Council is expected to review the UNMISS mandate in the coming weeks, with Britain calling for a mission that is “credible, deliverable, and responsive” to conditions on the ground.

The statement reflects growing international concern over the risk of renewed civil war as South Sudan approaches planned general elections in December 2026.