In 1946, British relations with the Yishuv worsened, building up to Operation Agatha of June 29. The authorities ignored the Anglo-American Committee of Inquiry's recommendation to allow 100,000 Jews into Palestine at once. As a result of the discovery of documents tying the Jewish Agency to the Jewish Resistance Movement, the Irgun was asked to speed up the plans for the King David Hotel bombing of July 22. The hotel was where the documents were located, the base for the British Secretariat, the military command and a branch of the Criminal Investigation Division of the police. The Irgun later claimed to have sent a warning that was ignored. Palestinian and U.S. sources confirm that the Irgun issued numerous warnings for civilians to evacuate the hotel prior to the bombing. 91 people were killed in the attack where a 350 kg bomb was placed in the basement of the hotel and caused a large section of it to collapse. Only 13 were British soldiers.