Vladimir Putin and Donald Trump will speak directly for the first time since the US president's inauguration in a telephone call on Saturday, the Kremlin has confirmed.

The planned telephone call between the two leaders, which was earlier reported in US media, has raised nervousness in Europe about the possibility of Mr Trump offering to unilaterally ease US sanctions against Russia.

The meeting comes a day after Mr Trump's meeting with Theresa May, who has said the West should "engage with but beware" of Mr Putin.