Saudi Arabia and Yemen's Houthi forces continue to attack each other.

On the 18th, Saudi Arabia and Yemen's Houthi armed group continued to attack each other. Affected by the intensifying conflict, a landmark building in Saudi Arabia required all staff to work remotely. On local time the 18th, Yemen's Houthi armed group issued a statement saying that within the past 24 hours, Saudi Arabia launched 110 airstrikes and missile attacks on Yemen's capital Sanaa, Taiz, Saada and other provinces, causing casualties. According to Houthi sources, a residential house in Saada Province in northern Yemen was hit by a Saudi airstrike that day, killing at least 9 people. Saudi Arabia's Civil Defense Department said on the 18th that Najran in Saudi Arabia was attacked by Yemen's Houthi armed group. The Saudi Civil Defense Department said that a projectile fired by the Houthis fell into a residential area, causing injuries and damage to vehicles and buildings. According to another report by Agence France-Presse, the Kingdom Centre tower, a landmark building in the Saudi capital Riyadh, required all office staff in the building to work remotely that day until further notice.