UN Secretary-General António Guterres has condemned a deadly Houthi attack on King Khalid International Airport in Riyadh, the Saudi capital. The blast reportedly killed 12 people at the site. Guterres denounced the strike in no uncertain terms and demanded an end to attacks of this kind. He pointed to the repeated Houthi assaults on Saudi territory that have continued despite years of mediation efforts. The UN chief has long argued that civilian infrastructure must be kept out of the war. An airport is a particularly sensitive target because of the crowds and international traffic it handles. His office urged all sides to step back from further escalation in the region.