Gudrun Burwitz, the daughter of high-ranking Nazi Heinrich Himmler, has died aged 88.

She was an unrepentant Nazi and a Holocaust denier. Her father was head of the SS and a chief architect of the genocide against the Jews.

According to German newspaper Bild, Munich-based Burwitz worked for the country's Federal Intelligence Service in the 1960s.

It reported that Burwitz, who was active in far right circles into her old age, was employed from the end of 1961 until 1963 as a secretary at the BND in Pullach, Munich, under a different name.

Burwitz participated in Nazi marches and never distanced herself from her father or his crimes.

She was the figurehead of the Nazi organisation “Silent Assistance,” which helped accused Nazi war criminals find refuge, avoid extradition, get a lawyer or pay for an old age home.

The organisation was established in 1951 and was said to have tried to help Klaas Carel Faber, 89, avoid extradition from Holland to stand trial for war crimes in Germany, in 2011.

The group also assisted former Danish SS officer Soren Kamm, a German citizen, who was wanted in his country of birth.

In an interview with the Daily Mail she said: "I never talk about my work… I just do what I can when I can."