There were no immediate reports of casualties, or comment from the Saudi on the attack.
The Saudi-led coalition, which has been waging a war against Yemen since early 2015, claims that the Houthis are using Hudaydah for weapons delivery, an allegation rejected by the fighters.
Saudi Arabia has also imposed a blockade on Yemen, which has smothered humanitarian deliveries of food and medicine to the import-dependent state.
Several Western countries are supplying the Riyadh regime with advanced weapons and military equipment.
