Riyadh: Explosions rang out in the Saudi capital on Sunday, as the kingdom was due to reopen Riyadh international airport despite repeated attacks.
Saudi Arabia has faced a barrage of strikes from the group in recent weeks.
Riyadh's international airport said flights would resume on Sunday after a two-week closure following the strikes, with the Flight Radar monitoring site showing a plane taking off early in the day.
The fighters have carried out waves of strikes on the airport, including an attack this month that killed 13 people and wounded more than 300, the deadliest in the kingdom in more than a decade.
Ansar Allah spokesman Yahya Saree warned that the facility was still "unsafe" and a "military target".
"The Yemeni Armed Forces warn all international, regional and local airlines -- as well as staff and travellers -- against using King Khalid Airport in Riyadh, as it is unsafe and serves as a military target for our forces," he said.
"The Saudi regime shall bear the consequences of any operations at the airport."
- Attack warning -
An AFP journalist in the city heard three explosions in the early hours of Sunday, with residents receiving alert messages for a "hostile aerial threat" urging them to stay in a safe place.
The warning came as the Saudi-led coalition fighting the Ansar Allah said it had downed a ballistic missile launched by the group towards Riyadh, as well as two drones in the capital area.
"Air defences intercepted and destroyed a ballistic missile launched by the terrorist Houthi militia toward Riyadh," the coalition posted on X.
The attack came after the fighters said that -- in the space of 24 hours -- they targeted three Saudi airports, including in Riyadh, energy installations, a pipeline and an air base.
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