In Yemen, officials from the U.N.-recognized government conceded defeat Sunday to the United Arab Emirates in the port city of Aden after southern separatists took control of government military camps and the presidential palace. This came after days of fighting that killed a reported 40 people, including civilians. Saudi Arabia threw its support behind Yemen’s exiled president as the Saudi-UAE coalition appeared to fracture over recent days. The International Crisis Group warned Friday that the situation in Aden “threatened to tip southern Yemen into a civil war within a civil war.” Tens of thousands have been killed by fighting in Yemen since 2015, and the ensuing food crisis has caused the death by starvation of an estimated 85,000 children.