In a phone call with UK Prime Minister Boris Johnson this evening, Ukraine's President Volodymyr Zelensky said he believes the next 24 hours will be a crucial period for Ukraine as fighting continues across the country.

During the call, Mr Johnson praised Mr Zelensky's leadership since Russia's invasion, according to a UK government spokesperson.

Mr Johnson added the UK would do all it can to make sure defensive aid from the UK and its allies reaches Ukraine. 

The two leaders agreed to stay in close contact.