Watch as Holocaust survivors returned to Auschwitz in Poland on Monday, 27 January, marking 80 years since the concentration camp was liberated.
Holocaust Memorial Day is held yearly on 27 January to commemorate the memory of the six million Jews and other groups who the Nazis murdered in the Holocaust.
Around 1.1 million people were murdered at Auschwitz in less than five years.
King Charles III attended a service at the site, marking the first time a British head of state has visited Auschwitz.
He met the country’s President Andrzej Duda during his brief trip.
Sir Keir Starmer and the Prince of Wales will attend official commemorations in London.
The prime minister warned a similar atrocity could happen in the future unless society upholds its duty to “make ‘never again’ finally mean what it says”.
Sir Keir said “As we remember, we must also act,” pointing to other atrocities in Cambodia, Rwanda, Bosnia and Darfur which followed the Holocaust.
“Today, we have to make those words mean more. We will make Holocaust education a truly national endeavour,” he said.
