Sir Keir, who is in Poland for defence and security talks, said "nothing" could have prepared him for the horror of what he had seen.

British Prime Minister Keir Starmer has visited the site of Nazi extermination camp of Auschwitz. After the visit Friday he voiced his “sheer horror” at what he saw and vowed that he would fight the growing antisemitism which is causing fears to rise among Jews even in Britain.

British PM says he saw 'sheer horror' at concentration camp which saw industrial-level killing as a 'collective endeavor by thousands of ordinary people'

British Prime Minister Keir Starmer on Friday condemned what he called "the poison of antisemitism rising around the world" after a visit to Auschwitz-Birkenau, the former German Nazi concentration camp.

British Prime Minister Keir Starmer visited the Auschwitz death camp, marking the 80th anniversary of its liberation. He was profoundly impacted by the history of the site and pledged to combat antisemitism.

Britain's King Charles is due to attend a commemoration service at the Auschwitz-Birkenau Museum and Memorial on Jan. 27.