UN envoy for Yemen leaves Sanaa Airport Last updated Oct 2, 2019 4:34 PM Martin Griffiths, UN Special Envoy for Yemen briefs the press on the Geneva Consultations on Yemen, Palais des Nations. 5 September 2018. Photo by Violaine Martin Share SANAA, Oct 2 (YPA) – The UN Secretary General’s Special Envoy for Yemen, Martin Griffiths left Sanaa International Airport on Wednesday after a two-day visit. AA Share FacebookTwitterGoogle+ReddItWhatsAppPinterestEmail