
A boy carries his gas cylinder to fill it up amid increasing gas shortage in Sanaa, Yemen, on Nov. 7, 2017. Jens Laerke, Geneva spokesperson for the United Nations Office for the Coordination of Humanitarian Affairs (OCHA), said humanitarian operations are currently blocked due to the closure of air and sea ports in Yemen on Tuesday. "All air and seaports need to remain open to ensure that food, fuel and medicines can enter the country," said Laerke. (Xinhua/Mohammed Mohammed)