Fox News. Special Envoy Steve Witkoff announced U.S.-mediated peace talks between Ukraine and Russia on Nov. 10 and 11, focusing on security arrangements and de-escalation. US to Hold 3-Way Talks With Ukraine, Russia in Abu Dhabi Next. Law enforcement and judicial authorities are examining the evidence and procedural records linked to the matter. Officials stated that further legal action and detailed findings will follow as the formal investigation progresses.