A six-month ceasefire deal in Yemen has expired. The United Nations is calling for an extension to the truce, but the U.S.-backed, Saudi-led coalition and the Houthis have yet to support the deal. The U.N. special envoy for Yemen, Hans Grundberg, urged both sides to avoid a new round of fighting.

Hans Grundberg: “I would urge all sides to exercise maximum restraint at this particularly sensitive period of time, because at this moment of time any small incident could spark something that could have devastating consequences.”