War in Ukraine: Fact-checking Russian claims that Nato troops are fighting in Ukraine

Russian President Vladimir Putin says there are military units in Ukraine "under the de-facto command of Western advisers".

Claims have also appeared on Russian television and social media channels that Nato troops are actively involved in the war.

Nato member countries have been providing weaponry and logistical support, but have said they aren't sending troops into Ukraine, which is not a member of the alliance.

We've looked at the evidence provided for these claims of Nato boots on the ground in Ukraine.