There are reports of a major attack happening in Ukraine's capital, Kyiv, by Russian forces. According to Reuters, explosions were heard around the city when the attack occurred in the early hours of the morning. Witnesses have told the news agency that air defences are active, and Ukraine's military is prepared to launch cruise and ballistic missiles. It comes just two days before Ukrainian President Volodymyr Zelensky meets with his American counterpart, US President Donald Trump, for peace negotiations.