Arnold Schwarzenegger under fire for using catchphrase to sign Auschwitz book

Arnold Schwarzenegger has come under fire for using one of his famous catchphrases to sign the Auschwitz guestbook.

As part of his current trip, he headed to the World War II concentration camp where he met with a Holocaust survivor, the son of Holocaust survivors and a woman who as a young child was made to suffer experiments by notorious Nazi doctor Josef Mengele.

“I was the son of a man who fought in the Nazi war and was a soldier... Let’s fight prejudice together and let’s just terminate it once and for all."

Auschwitz Memorial shared a number of tweets of the event, including Arnie's guestbook inscription - which featured his signature alongside his famous Terminator catchphrase 'I'll be back'.

Although people knew he meant well, some felt the movie reference was in poor taste, with one writing: "Not sure the tone of that was entirely suitable," and another adding: "A bit frivolous and tacky."

A third added: "I'm glad he visited and wrote in the book but I had to think twice about the message. I'm sure he meant it in the nicest possible way and having been there I know its hard to find the right words but I'm not sure these were the best."

Others, however, jumped to the star's defence, including this person who said: "It's so sad to see so many hate on him for this. He obviously means he will come back to the site in the future. Yikes."

Another commented: "His play on words is not shallow. He meant it. And he’s right to say it."

Auschwitz Memorial even stepped in amongst the tumult to determine that there was no ill intent behind the signing.

"This visit was planned to be relatively short," it wrote. "The inscription was meant to be a promise to return for another and more in depth visit."