The United Nations is condemning North Korea’s “unlawful and arbitrary” killing of a South Korean government worker and is urging Pyongyang to share more details about the case.

A new U.N. Office of High Commissioner for Human Rights (OHCHR) report published on Thursday called out North Korea for the slaying of Lee Dae-jun, a South Korean Ministry of Oceans and Fisheries worker who mysteriously ended up in DPRK waters on Sept. 22. 

“The incident seems to entail an unlawful and arbitrary killing of a civilian who was not exhibiting any imminent threat to life of the security guards, which is