Boris Johnson has arrived in Ukraine for talks with the country’s president amid rising concerns over a possible Russian invasion, writes BBC.

The UK prime minister promised to work with Volodymyr Zelensky to find a diplomatic solution to arguments with Moscow and “avoid further bloodshed”.

Russia has massed an estimated 100,000 troops, tanks, artillery and missiles near its borders with Ukraine.

But President Vladimir Putin denies he is planning an attack.

However, his government has warned Ukraine not to make any further moves towards joining NATO, arguing that this threatens Russia’s own security.

The US has rejected this demand and Western countries are threatening to expand sanctions against Moscow if there is an invasion.

UK Foreign Secretary Liz Truss has said legislation was being prepared to target a wider range of individuals and businesses associated with Mr Putin, while a US official said Washington"s sanctions meant people close to the Kremlin would be cut off from the international financial system.