Houthi military spokesman Yahya Sarea said in a Twitter post that two drones were fired at military hangars in Jazan airport in the south of the kingdom and a military airbase in Khamis Mushait.

The Saudi-led coalition intervened in Yemen in March 2015 against the Houthis after the movement ousted the internationally recognised government from the capital Sanaa.

The UN and the US have stepped up diplomatic efforts for a ceasefire deal, which Saudi Arabia and Yemen’s Saudi-backed government have welcomed. The Houthis are pushing for the full lifting of the coalition’s sea and air blockade on areas the group controls.

Houthi forces have also launched a ground offensive in Yemen’s gas-rich Marib region, the government’s last stronghold in the north.