Yemen's Houthi rebels declared a naval blockade against Saudi Arabia on Monday, announcing a maritime embargo targeting Saudi ports and shipping as the conflict in the Middle East widened on multiple fronts.
Kuwait's army said it was under active attack from Iranian-launched missiles and drones, with engagements ongoing as of Monday. The Kuwaiti military did not immediately confirm casualties.
The US military separately identified two American soldiers killed in an Iranian strike on a base in Jordan. The Pentagon confirmed the deaths but had not announced retaliatory action by late Monday.
The Houthi blockade declaration extends the group's campaign beyond Israeli-linked shipping to include Saudi Arabia directly, raising the threat to Red Sea and Gulf of Aden traffic.
Iran has not publicly claimed the Kuwait attack. Tehran-backed forces have been operationally active across Iraq, Yemen, and Syria throughout the current crisis.
Oil markets reacted immediately, with futures moving on concern over Strait of Hormuz access and Gulf shipping disruption.
The Pentagon is expected to brief reporters Monday evening. Congressional leadership has been notified of the soldier deaths under the War Powers Act, according to sources familiar with the notifications.