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Envoy says US and allies are mulling options 'both inside and outside the UN' to monitor North Korea
![Jung Yeon-Je U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/358486dfc11e43d38a27dc676246b500/preview/preview.jpg?s=680x)
U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)
![Jung Yeon-Je U.S. Ambassador to the United Nations Linda Thomas-Greenfield arrives to attend a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/3dcd1b6db8e44956b9e5d4b16d56445f/preview/preview.jpg?s=680x)
U.S. Ambassador to the United Nations Linda Thomas-Greenfield arrives to attend a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)
![Jung Yeon-Je U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/bec2cd544d9749f1b2a43320c86d05d8/preview/preview.jpg?s=680x)
U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)
![Jung Yeon-Je U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/62d0cc4959a24c52b091742fbb1f275c/preview/preview.jpg?s=680x)
U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)
![Jung Yeon-Je U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/a8cec62983784cf6bea606ae3e170022/preview/preview.jpg?s=680x)
U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)
![Jung Yeon-Je U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)](https://mapi.associatedpress.com/v2/items/0c1ed0247e2945b2b7093ce500a60188/preview/preview.jpg?s=680x)
U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during a press conference at the American Diplomacy House in Seoul Wednesday, April 17, 2024. (Jung Yeon-je/Pool Photo via AP)