A/HRC/63/19 United Nations General Assembly Distr.: General 13 July 2026 Original: English Human Rights Council Sixty-third session 7 September–9 October 2026 Agenda item 4 Human rights situations that require the Council’s attention Report of the Independent Investigative Mechanism for Myanmar* Summary The present document is the eighth report submitted by the Independent Investigative Mechanism for Myanmar to the Human Rights Council pursuant to Council resolution 39/2 of 27 September 2018. It covers the activities carried out by the Mechanism between 1 July 2025 and 30 June 2026, highlighting progress made in the investigations and accountability processes facilitated by the Mechanism, challenges it has encountered and areas requiring additional support. Over the past year, the Mechanism’s investigations showed that the frequency and intensity of war crimes and crimes against humanity committed by the Myanmar military and by various armed groups continued to escalate. The Mechanism advanced its investigations into crimes committed since the February 2021 military coup, including indiscriminate and intentional aerial attacks against civilians which led to the identification of some of the military units responsible and of their respective command structures; killings of detained civilians and combatants; sexual and gender-based crimes committed by both the Myanmar military and non-State armed groups; and unlawful detention and imprisonment, including physical and sexualized torture, committed by Myanmar security forces in specific detention facilities. The conflict in Rakhine State intensified significantly during the reporting period, and the Mechanism investigated crimes such as arbitrary detention, torture, forced displacement and restrictions on humanitarian assistance committed against Rohingya, Rakhine and other communities by all perpetrators, including members of the Arakan Army. The Mechanism’s investigations into the 2016 and 2017 clearance operations against the Rohingya also continued to progress. The Mechanism focused on identifying previously undocumented attacks, examining the structure and role of the armed groups and engaging with former military personnel possessing critical insider information. * Agreement was reached to publish the present report after the standard publication date owing to circumstances beyond the submitter’s control. GE.26-09554 (E)