The German Nazi concentration camp of Bergen-Belsen was liberated by British troops 70 years ago. Around 20,000 thousand corpses lined the streets of the camp as the British troops arrived at the camp on 15 April 1945.

Thousands of skeletal figures, ravaged by hunger and disease stumbled through piles of unburied bodies.

Bergen Belsen liberation
Bodies lie in a mass grave at Bergen-Belsen Keystone/Getty Images
Bergen Belsen liberation
April 20, 1945: Female prisoners remove the clothing from corpses at Belsen concentration camp, to be burnt as fuel Keystone/Getty Images
Bergen Belsen liberation
October 1945: Nazi officials are forced by British authorities to exhume and then give proper burials to 100 bodies AFP

Although Belsen was not officially an extermination camp, one hundred thousand Jews, Poles, Russians, Gypsies and other victims perished there including Jewish teenage diarist Anne Frank.

On liberation, SS forces were ordered to bury the dead, inmates were transferred to a British camp a couple of miles away and the camp was burnt down at the end of May to prevent the spread of infectious diseases.

The commander of the camp, Joseph Kramer, also known as "the Beast of Belsen" was arrested soon after the liberation. He was sentenced to death by a British military court and later hanged.

A further 13,000 people died after the liberation.

A memorial and Jewish memorial museum dedicated to all the victims is now open on the site of the old camp. The Bergen-Belsen camp was only one of many Nazi camps where millions of people lost their lives in horrific circumstances.

The memorial and graves at Belsen now stand as testament to one of the worst atrocities in human history.