Mr Tusk denounced the words as "all too familiar and ominous", and his tourism minister, Sławomir Nitras, has gone even further and called for Polish citizens - around 6 million of whom died in the Holocaust - to launch a boycott of Tesla vehicles in response.

Tesla owners are boycotting the popular electric vehicle over founder Elon Musk’s controversial salute at the inauguration of President Donald Trump, which was widely compared to the Roman salute used by the Nazis.

The world’s richest person has heaped praise on the Alternative for Deutschland party in recent weeks ahead of the country’s upcoming election.