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

The Prime Minister visited the former Nazi concentration camp as he travelled to Poland to meet with the country’s political leaders.

WARSAW, Poland (AP) — U.K. Prime Minister Keir Starmer on Friday visited the site of Nazi extermination camp Auschwitz, voicing his “sheer horror” at what he saw and vowing that he would fight the growing antisemitism which is causing fears to rise among Jews including in Britain.

UK Prime Minister Keir Starmer visited Auschwitz, expressing horror at the site and pledging to combat rising antisemitism, especially following the recent escalation in tensions involving Israel and Hamas.

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.

The prime minister was on his first visit to the concentration camp where 1.1 million people perished before its liberation 80 years ago.

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.

U.K. Prime Minister Keir Starmer on Friday visited the Nazi German extermination camp at Auschwitz, voicing his “sheer horror” at what he saw there, before holding talks with Poland's leaders on stepping up European defense and tightening Britain's ties with the European Union.