Amnesty International publishes the following letter received from the Iraqi Ministry of Foreign Affairs on 8 June 2023 in response to a letter sent by the organization on 19 May 2023 regarding the fate and whereabouts of at least 643 men and boys who were forcibly disappeared in June 2016 by the Popular Mobilization Units (PMU) in the context of military operations to retake Fallujah from the so-called Islamic State.