On 4 July 1946 a massive pogrom in Poland led to a wave of Holocaust survivors fleeing Europe for Palestine. Three weeks later, Irgun bombed the British Military Headquarters of the King David Hotel in Jerusalem, killing 91 people. In the days following the bombing, Tel Aviv was placed under curfew and over 120,000 Jews, nearly 20% of the Jewish population of Palestine, were questioned by the police. In the US, Congress criticized British handling of the situation and considered delaying loans that were vital to British post-war recovery.