German neo-Nazi Ursula Haverbeck, dubbed the 'Nazi grandma' by German media, has again been convicted of Holocaust denial and sentenced to eight months in prison

A prominent German neo-Nazi dubbed the 'Nazi grandma' by German media has again been convicted of Holocaust denial and sentenced to eight months in prison.

The Detmold state court in Germany announced on Friday that 87-year-old Ursula Haverbeck plans to appeal the decision.

Haverbeck wrote a letter in February to the mayor of Detmold when a former Auschwitz guard was going on trial there, claiming the notorious Nazi death camp was only a labour camp and called survivors 'alleged witnesses.'

Haverbeck was most recently convicted of Holocaust denial in 2015 for a similar statement in an interview outside the trial of a former Auschwitz guard in Lueneburg.

She was sentenced to 10 months imprisonment in that case but remains free as her appeal is heard.

Both guards were convicted of multiple counts of accessory to murder and are appealing.

Haverbeck, who is a friend of Gudrun Burwitz - elderly daughter of Nazi S.S. chief Heinrich Himmler - was sentenced for sedition over the interview she gave to a TV station denying that Jews were murdered in extermination camps.

The Detmold state court in Germany announced on Friday that 87-year-old Ursula Haverbeck plans to appeal the decision

In the interview with the ARD network she claimed the death camp of Auschwitz in Nazi occupied Poland, where at least 1.1 million people were murdered, was 'nothing more than a labour camp.'

In Germany, anyone who publicly denies, endorses or plays down the extermination of Jews during Adolf Hitler's regime can be sentenced to a maximum of five years in jail.

It is estimated that more than six million people, including Jews, gays, Romany, the disabled and other persecuted minorities, were killed during the Holocaust.

Some 1.1 million people, most of them European Jews, were murdered between 1940 and 1945 in the Auschwitz-Birkenau camp before it was liberated.

Haverbeck wrote a letter in February to the mayor of Detmold when a former Auschwitz guard was going on trial there, calling Holocaust survivors 'alleged witnesses'