The US military said in a statement that the Houthi militia launched three “unmanned aerial systems” from Yemen, without causing casualties or damage.

The US Central Command (Centcom) said in a statement that a coalition ship successfully engaged one of the drones, while US Central Command forces dealt with the second drone, and the third crashed in the Gulf of Aden.

The Houthis in Yemen have been launching attacks on ships in the Red Sea since last November, and the attacks have led to the disruption of global shipping traffic, forcing companies to change their route to longer and more expensive journeys via the Cape of Good Hope route around South Africa.