Volodymyr Zelensky has stressed the 'urgent need' to bolster defence weapons in a meeting with Keir Starmer in Downing Street.The Ukrainian President arrived at No 10 today to discuss 'strengthening Europe'.He was joined by Sir Keir, Emmanuel Macron and German Chancellor Friedrich Merz for talks on air defence in the face of increasing 'Russian aggression'.The leaders discussed the need to 'scale up the production of interceptors and co-develop anti-ballistic missile and deep strike capabilities' after Russia fired hypersonic missiles at Ukraine.In a post on social media before the meeting, Mr Zelensky said the focus would be 'greater cooperation' towards a 'shared view of diplomatic prospects'.He added: 'Europe must be part of the negotiations and must be strong.' Mr Zelensky said he would meet King Charles tomorrow, thanking the UK and allies for their vow to 'help us strengthen the protection of life and increase pressure on Russia for its aggression'.The meeting comes after a Russian drone strike today damaged a storage centre for spent nuclear fuel in the Kyiv region, nine miles from the Chernobyl power plant.The Ukrainian leader described the strike as 'extremely vile' - saying it was 'an increase in Russia's brazenness'.International Atomic Energy Agency chief Rafael Grossi said the incident was 'deeply concerning' due to the large amounts of nuclear material held at the facility. The President of Ukraine has arrived at Downing Street to discuss 'strengthening Europe' in a meeting with Keir Starmer Keir Starmer, Volodymyr Zelenskiy, Emmanuel Macron and Friedrich Merz at 10 Downing Street The pair shook hands on the doorstep to No 10 where the Ukrainian flag and Union Jack have been unfurled Sir Keir gave his ally a friendly pat on the shoulder ahead of the meeting. The UK has committed £21.8 billion for Ukraine since February 2022 Emmanuel Macron, the President of France, is seen arriving in Downing Street this evening ahead of talks with Volodomyr Zelensky German Chancellor Friedrich Merz arriving in Downing Street, Westminster, ahead of talks about ongoing support and solidarity for Ukraine Keir Starmer welcomes Mr Macron outside the entrance to Downing StreetFollowing the attack, a fire was extinguished within an hour, with officials confirming radiation remains within safe levels. The so-called E3 group of nations meeting Mr Zelensky are some of Kyiv's staunchest allies, with the UK and France leading the 'coalition of the willing' initiative to provide security guarantees for Ukraine as part of a peace process.It is believed a new military aid package for Ukraine will be forthcoming.Sir Keir was seen shaking hands with and hugging French leader Mr Macron this evening on the doorstep of No 10 where French, Ukrainian, UK and German flags were put up and a red carpet rolled out.Mr Zelensky held up a peace sign as he smiled and greeted the Prime Minister.This evening, Mr Zelensky told Sky News 'we will not silently die' - amid a recent surge of attacks deep inside Russia.He said: 'We will respond. We will be stronger and stronger each day.'Earlier this week, Kyiv launched a series of strikes on the city of St Petersburg where a major economic forum was being held. Mr Zelensky held up a peace sign as he smiled and greeted the Prime Minister Mr Zelensky earlier said: 'Pressure on Russia must be increased. Thank you to everyone who's helping!' Chernobyl nuclear power plant is pictured a few weeks after the 1980s disasterRussian President Vladimir Putin on Friday rejected a proposal by Mr Zelensky for face-to-face talks on the four-year-old war, claiming he saw 'no point'.Discussing the invitation, Mr Zelensky said: 'I sent an open letter because I don't know if he will read it or not.'An open letter means that he has to answer to us about what is important to his society, because his society lives in some fantastic world that they didn't attack, that it's not an aggressive war. It's not serious.'That's why for me, it's very important to openly share where we are.'They closed the internet and a lot of different things. We don't have too much possibilities to give signals to this country, the country of aggression.'They brought this big war to our country. They have to stop.'Officials said Russian strikes hit civilian infrastructure in 13 regions last night, with five people dying in last night's nuclear facility attack.Over the past week, the country has launched 88 missiles, more than 3,250 attack drones, and around 1,800 guided aerial bombs on Ukraine.Mr Zelensky said: 'Pressure on Russia must be increased. Thank you to everyone who's helping!'Moscow and Kyiv have intensified drone strikes on each other in recent months as US-led diplomatic efforts to end the war, now in its fifth year, remain sidetracked by the conflict in the Middle East.In February 2025, a Russian Shahed drone damaged a containment arch over the Chornobyl reactor that was destroyed in the April 1986 explosion and meltdown. Russia denied responsibility.Kyiv and Moscow have also traded accusations of attacking the Russian-occupied Zaporizhzhia Nuclear Power Plant in southeastern Ukraine, Europe's largest.Last February, a Russian drone attack on the plant significantly damaged a radiation shelter covering one of the reactors, sparking fears of a radioactive leak.Mr Zelensky said at the time that a Russian attack drone 'with a high-explosive warhead struck the shelter protecting the world from radiation at the destroyed 4th power unit of the Chornobyl Nuclear Power Plant'.He said the shelter was damaged but that the fire had since been extinguished.The cover is used to prevent radiation after the 1986 nuclear disaster, which sent a radioactive cloud across Europe.The explosion at the Chernobyl nuclear power plant was the worst civilian nuclear disaster in history and changed global perceptions of nuclear energy.Thousands are estimated to have died as a result of exposure to the radiation, though assessments of the precise human death toll vary.Following this evening's Downing Street meeting, Sir Keir, Mr Macron, Mr Merz and Mr Zelensky shook hands warmly and posed for a group picture.The leaders smiled to onlookers before the French president and German chancellor headed to their cars.On his way to his car, Mr Macron greeted reporters in French saying 'hello gentlemen and ladies'.The Prime Minister and the Ukrainian leader then re-entered No 10 - though Mr Zelensky left just over half an hour later.The UK has committed £21.8billion for Ukraine since Russia's invasion - which followed a dispute over NATO expansion and borders - in February 2022.A quarter of a million Ukrainians have since arrived in Britain, including 174,900 through the Homes for Ukraine scheme.