U.N. chief launches fact-finding mission into Ukraine prison attack

FILE PHOTO: United Nations Secretary-General Antonio Guterres addresses the media prior to the Nuclear Non-Proliferation Treaty review conference in New York City, New York, U.S., August 1, 2022. REUTERS/David 'Dee' Delgado

UNITED NATIONS (Reuters) - U.N. Secretary-General Antonio Guterres said on Wednesday he will launch a fact-finding mission into an attack in the front-line Ukranian town of Olenivka that killed prisoners held by Moscow-backed separatists.

Russia and Ukraine both requested an investigation, Guterres told reporters. He said the terms of reference for the mission, which would need agreement from Russia and Ukraine, were being prepared.

(Reporting by Michelle Nichols; Editing by Rami Ayyub)