A Philippine diplomat in New York has tested positive for the new coronavirus in the first recorded case at United Nations headquarters in the city, diplomatic sources said on Thursday. The diplomat, who had last visited the UN on Monday, showed symptoms of flu the following day and saw a doctor. A letter from the Philippines' mission disclosed that she got the call today that she tested positive for COVID-19. The Philippine mission is now on lockdown, and all personnel has been instructed to self-quarantine. The diplomat works at the UN General Assembly’s Sixth Committee, which deals with legal matters. About 3,000 people are employed at the towering riverfront UN headquarters. Numerous other diplomats from the 193 UN member countries come and go between their own missions in the area and the Manhattan UN complex.