David Baddiel has warned of "more insidious" Holocaust denial ahead of a new documentary he hopes will keep the memory of survivors alive.

"I’ve always had a dark fascination with Holocaust Denial," Mr Baddiel said.

“The fact that since it happened (indeed whilst it was happening) forces have tried to undermine one of the most well-documented truths of history seems to me a key battleground in the fight between truth and lies.”

The documentary, titled Holocaust Denial: A History with David Baddiel, will air on BBC Two in early 2020 to mark 75 years since the liberation of Auschwitz-Birkenau.

According to a survey commissioned earlier this year by the Holocaust Memorial Day Trust, five per cent of British adults say they do not believe the Holocaust happened.

Mr Baddiel, whose mother was a refugee of Nazi Germany, has described himself as a “Jewish atheist”.

The north Londoner said: “As the last survivors, including those in my own family, begin to pass away, and with them, living memory of The Holocaust, I’m grateful to the BBC for allowing me to explore this complex subject, in all its difficulty and darkness.”