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The press release issued by the Foreign Office on 26 May 2026.

Ambassador Holland condemned Russia’s largest aerial attack on Kyiv since 2022, including the use of an Oreshnik nuclear-capable missile. Russia’s threats to strike the heart of Kyiv are unwarranted, irresponsible and completely unjustified. The UK will continue to stand firmly with Ukraine.

Thank you, Mr Chair. And thank you Chairs also for convening this meeting so promptly.

The United Kingdom condemns the latest wave of Russian aerial attacks against Ukraine, carried out overnight on 23-24 May. Russia used around 600 drones and 90 missiles to strike Kyiv and multiple regions across Ukraine. This was the largest attack on Ukraine’s capital city in a single night since 2022. It also comes shortly after Russia’s unprecedented air attacks of less than two weeks ago, when Moscow launched around 1,530 drones and missiles across Ukraine within a 24-hour period.

In this latest assault, and for the third time, Russia attacked Ukraine with an Oreshnik nuclear-capable intermediate-range ballistic missile. We again condemn this reckless attack, which was yet another attempt to terrorise the people of Ukraine. Russia’s repeated and continued use of Oreshnik, and other nuclear-capable missiles, increases the risk of misperception which could lead to a dangerous miscalculation.

Russia’s attacks on Kyiv this weekend killed at least four people and injured around a hundred. In May alone, Russian attacks have killed nearly 200 civilians across Ukraine. There has been widespread damage, particularly in Kyiv, to residential buildings, schools, emergency facilities, and critical infrastructure. Regrettably, several cultural sites, including the National Art Museum and Kyiv Opera, were also damaged during this latest assault – a reminder that Russia’s war also targets Ukraine’s history, identity, and memory.

Last week, Russia called a meeting of the UN Security Council to discuss the protection of civilians. The very next day, it launched these attacks.  Its actions speak far louder than its words. If Russia truly wished to protect civilians, it would commit to an immediate, full and unconditional ceasefire, just as Ukraine has done.

But rather than take the path of peace, Moscow has made further threats to strike the heart of Kyiv and warned diplomatic missions to leave Kyiv. Such threats are unwarranted, irresponsible and completely unjustified. Any attack on a diplomatic mission would constitute a further escalation in Russia’s illegal war.

Chairs, as participating States, we have committed – through the OSCE acquis developed since the Helsinki Final Act – to engage constructively, reduce risks, and to uphold our shared commitments even in times of crisis. Russia has chosen to do the opposite. Russia’s actions are clearly in contravention of the principles of the Helsinki Final Act, including on sovereignty, territorial integrity, and the prohibition on the use of force.

The United Kingdom therefore urges all participating States to remain united in condemning Russia’s actions and in defending the rules‑based international order. We must ensure accountability for violations of international law, including through the work of international monitoring and documentation mechanisms. And we must continue to support Ukraine’s inherent right to self‑defence, in line with the UN Charter.

The United Kingdom will continue to stand firmly with Ukraine. We urge Russia to fully comply with its international obligations and OSCE commitments. And we will continue to defend the principles that underpin our shared security.

Thank you.

The press release issued by the Foreign Office on 26 May 2026.

Statement by Ambassador James Kariuki, UK Chargé d’Affaires to the UN, at the UN Security Council meeting on Multilateralsiam.

We are facing a deeply complex set of conflicts, including protracted crises in the Middle East, Sudan, and Ukraine. On this, I feel compelled to mention Russia’s egregious attacks on Ukraine over the weekend, which only brings us further from the peace that the international community repeatedly calls for. These challenges require a coordinated global response, and a collective commitment to these principles.

I will make three points.

First, we need to use the UN more effectively to prevent and resolve conflict, particularly through this Council which has the primary responsibility for international peace and security. We know the tools – peacekeeping deployments, good offices, and sanctions – exist. But we need the collective will to ensure they are effective and fit for purpose.

The Council should also be more representative of the world today, including via expansion of both its permanent and non-permanent membership. The UK supports permanent representation for Africa, alongside permanent seats for Brazil, Germany, India, and Japan.

Second, we should collectively embrace the opportunity of the Secretary-General’s reform initiative to strengthen the broader UN system and bolster its impact. The Pact for the Future reflected a shared commitment to reinvigorate multilateral cooperation and improve how the UN delivers. UN80 should continue to build on that momentum, working towards a stronger, more effective UN, better able to deliver against today’s complex challenges. As we look ahead to the selection of the next Secretary‑General this year, their ability to deliver a fit-for-purpose UN will be particularly important.

Finally, we must not lose sight of the UN’s successes thus far in preventing conflict, supporting peace, helping states uphold their human rights obligations, and responding to humanitarian crises.

The UN continues to facilitate and provide lifesaving assistance across the globe. It has deployed over 70 peace operations, successfully stabilising some of the most challenging environments and bringing lasting peace including in El Salvador, Sierra Leone, and Timor-Leste. We honour the courage and sacrifice of the 4,500 UN personnel and peacekeepers who have lost their lives since 1948.

The UN has also helped reduce polio by over 99 percent and driven landmark climate agreements. These achievements show what the UN can deliver when we work together.

President, multilateralism faces unprecedented strain but remains the best tool we have to meet our shared challenges. Our response must be guided by the principles of the UN Charter, including respect for sovereignty, territorial integrity, human rights, and international law. Only through collective adherence to these principles can we deliver lasting peace, stability, and security. The United Kingdom remains committed to working with all Member States to this end.