Not only is model Bar Refaeli ridiculously beautiful, she is also the girlfriend of actor Leonardo DiCaprio.

Bar was recently spotted wearing a band on her ring finger but the couple have denied the rumours.

However, according to the Sun, Israeli Bar has been warned that she should not marry the actor but a Jewish militant group.

The 24-year-old received a letter from the nationlist group Lehava which said: "It is not by chance you were born Jewish.

"Your grandmother and her grandmother did not dream one of their descendants would remove future generations from the Jewish people."

It added: "Come to your senses. Don't marry Leonardo DiCaprio."

The couple have been dating since 2005 and are back together since a brief split last year.