An activist group projected a photo of billionaire Elon Musk making a controversial gesture that resembled a Roman salute on a Tesla factory near Berlin this week, with a single word above the world’s richest man: “Heil.

The British campaign group "Led By Donkeys" has claimed responsibility for the stunt that authorities say may have breached German laws on the use of symbols linked to illegal organizations.

An image of Elon Musk's controversial salute has been beamed onto Tesla's Gigafactory in Berlin. On Wednesday, two left-wing political activist groups, the UK-based Led By Donkeys and Germany's Zentrum für Politische Schönheit,