Yemen's Iran-aligned Houthi group says it has launched a drone attack on Jizan airport in southwestern Saudi Arabia, part of an escalation of cross-border assaults in the four-year-old conflict.
The Saudi-led coalition fighting the Houthis in Yemen said it had intercepted and downed a drone heading towards civilian targets in Jizan.
The Houthis, who control capital Sana'a, have in the past few months stepped up their attacks against targets in Saudi Arabia.
In response, the coalition has targeted military sites belonging to the group, especially around Sana'a.
On Tuesday, the Saudi-led coalition said it intercepted and downed three Houthi drones launched towards the southwestern Saudi cities of Jizan and Abha.
The escalation in violence threatens a UN-sponsored deal for a ceasefire and troop withdrawal from the flashpoint coastal city of Hodeidah, which became the focus of the war last year when the coalition tried to seize its port, the Houthis' main supply line and a lifeline for Yemenis.
On Monday the United Nations said the warring parties had agreed new measures to enforce the ceasefire and facilitate a troop pullback.