 Rebels from Yemen's Ansarullah movement announced a military operation against US Navy ships in the Gulf of Aden and Bab Al-Mandab Strait. In the Gulf of Aden and the Strait of Bab Al-Mandab, there was a collision with several US destroyers and warships. These ships were guarding two US merchant ships. As a result of the operation, the US warship was shot down. The merchant ships were forced to retreat, Houthi military spokesperson Yehya Suriyah said. The Yemeni armed forces continue to retaliate to any American or British aggression against our country by targeting all sources of threat in the Red and Arab Sea, Yehya Suriyah said in a statement. The Houthis have said their attacks are in solidarity with the Palestinians as Israel bombards Gaza. Houthi forces in Yemen have written to the UN demanding that all UK and US staff leave the country within a month on the basis that their governments are mounting assaults on Yemen. The warning also appeared to apply to NGOs working in the capital, Sanaa. In addition, it was reported that the Houthis had prevented a UN plane from landing in the strategically important town of Marib.