Jets from a Saudi-led alliance destroyed the runway of Yemen's Sanaa airport on Tuesday to prevent an Iranian plane from landing there, Saudi Arabia said, as fighting across the country killed at least 30 people.

Yemeni Vice President Khaled Bahah had called on the Houthis on Monday to heed a U.N. Security Council demand for an end to fighting, which the Red Cross says has pushed Yemen into a humanitarian catastrophe.

Houthis seized the capital Sanaa last September, demanding a more inclusive government and crackdown on graft. Talks with President Abed Rabbo Mansour Hadi collapsed and he fled into exile. Chaos set in as the Iran-allied Houthi forces swept southward, fighting loyalist army units, regional tribes and al-Qaida militants.