Yemen's Houthis warned international shipping companies on the 20th that ships trading with Saudi ports may face military attacks, further expanding the scope of their previously announced maritime embargo against Saudi Arabia. On the evening of the 20th local time, the Yemeni Houthis's Humanitarian Action Coordination Center in Sana'a sent an email to several shipping companies saying that the relevant restrictions apply not only to ships flying the Saudi flag, but also to ships that load and unload cargo at Saudi ports. The notice urges shipping companies to take “due diligent measures” when arranging sailing plans involving Saudi ports, and warns that ships involved in related trade activities may “become targets of attack” within the scope of the Houthis's combat capability.

Yemen's Houthis warned international shipping companies on the 20th that ships trading with Saudi ports may face military attacks, further expanding the scope of their previously announced maritime embargo against Saudi Arabia. On the evening of the 20th local time, the Yemeni Houthis's Humanitarian Action Coordination Center in Sana'a sent an email to several shipping companies saying that the relevant restrictions apply not only to ships flying the Saudi flag, but also to ships that load and unload cargo at Saudi ports. The notice urges shipping companies to take “due diligent measures” when arranging sailing plans involving Saudi ports, and warns that ships involved in related trade activities may “become targets of attack” within the scope of the Houthis's combat capability.