Letter dated 15 August 2017 from the Secretary-General addressed to the President of the Security Council; Report of the United Nations Security Management System Board of Inquiry on the critical security incident resulting in the deaths of two members of the Group of Experts in Kananga, Democratic Republic of the Congo [S/2017/713]

https://www.ecoi.net/en/file/local/1406013/1226_1504082571_n1725985.pdf