Activists projected a video onto the façade of a Tesla factory in Berlin, Germany, depicting Elon Musk making a gesture that has been interpreted by some as a Nazi salute. The image showed Musk next to the word "Heil,

While addressing Trump supporters in Washington on Monday, the tech billionaire brought his hand to his chest and extended it straight out, twice, before saying: "My heart goes out to you." The gesture sparked controversy as it drew comparisons to a Nazi salute.

The Tesla factory in Germany, one of the biggest foreign investments in German manufacturing in years and the company’s only European plant, has frequently been the site of protests.