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.

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.

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.

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.

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.

The Starmers' joint visit comes after Lady Victoria, who is Jewish, headed to the site without her husband on Thursday. An estimated 1.3 million people were sent to the camp complex, including nearly 1.1 million Jewish people. Of them, 960,000 died in the 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.