United Nations Special Envoy to Yemen Martin Griffiths, speaks during news conference, in Marib, Yemen March 7, 2020. REUTERS/Ali Owidha
Martin Griffiths, the UN Special Envoy to Yemen, speaks during news conference in Marib, Yemen, in March. A November 2019 briefing by Mr Griffiths showed that the Houthis generated billions of riyals Show more

UN says Yemen government and southern forces must implement Riyadh agreement