Elon Musk, the world's richest man and a close ally of President Donald Trump, has faced widespread accusations of making a Nazi gesture twice during a speech to a crowd of Trump supporters gathered at Washington's Capital One Arena for an indoor "Presidential Parade" on Monday, shortly after Trump's second inauguration.

Campaign group Led by Donkeys has projected the clip of Elon Musk making two ‘Nazi salutes’ at Trump’s inauguration onto the side of his Tesla factory in Berlin. The video featured Musk making the gesture alongside the words “Heil Tesla”, a reference to the Nazi greeting used to pay homage to fascist leader Adolf Hitler.