UNITED NATIONS - A ceasefire in South Sudan's capital Juba appears to be 'largely holding, barring sporadic gunfire' and United Nations peacekeepers were able to carry out a limited number of short patrols on Tuesday, a UN spokesman said in New York. '(The UN. mission) also reports that the airport in the capital has been reopened, although commercial flights remain suspended,' UN spokesman Stephane Dujarric said.