Advisor at the Royal Court and Supervisor General of King Salman Humanitarian Aid and Relief Center Dr. Abdullah bin Abdulaziz Al Rabeeah, met at the center's headquarters in Riyadh today the United Nations Humanitarian Coordinator in Yemen William David Grisley, accompanied by the US Special Envoy to Yemen Tim Lenderking, Ambassador of the Kingdom of Netherlands to Yemen Peter Derrek Hof., and a number of officials. During the meeting, they discussed the humanitarian situation in Yemen and relief and humanitarian efforts being exerted to alleviate the suffering of the Yemeni people, as well as international efforts to address the situation of the oil tanker "Safer".