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

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.

International delegations are expected to attend a Jan. 27 ceremony commemorating 80 years since the death camp's liberation

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.