Houthis raid United Nations facilities after Israeli strike: ‘The Zionists have opened the gates of hell’ YnetnewsHouthis storm UN buildings in Yemeni capital after Israel killed PM and other ministers CNNWhy are Yemen’s Houthi group targeting aid workers? DWHouthis detain U.N. staffers after Israeli strike kills group’s prime minister The Washington PostUN chief demands release of 11 staff arrested in Yemen BBC