Ultimatum to Putin from leaders of UK, France, Germany, Poland in Kyiv to act by Monday came after call with Trump

European leaders on a joint visit to Kyiv have issued an ultimatum to Vladimir Putin: sign up to an unconditional ceasefire by Monday, or face increased sanctions and weapons transfers to Ukraine.

The leaders of Britain, France, Germany and Poland, together with Volodymyr Zelenskyy, made a joint phone call to Donald Trump prior to making the announcement.