The spokesman for the Saudi-led campaign against Yemeni rebels says coalition naval forces have besieged the country's ports.
Ahmed Asiri told reporters Monday that the naval forces are blocking the movement of ships to prevent weapons and fighters from entering or leaving Yemen.
Asiri, speaking from the Saudi capital Riyadh, spoke on the fifth day of airstrikes targeting Shiite rebels known as Houthis and allied forces loyal to former President Ali Abdullah Saleh.
The Houthis and their allies seized the capital Sanaa last September and the internationally recognized President Abed Rabbo Mansour Hadi fled the country last week.
Iran supports the rebels, but both Tehran and the Houthis have denied that it arms them.