The US Embassy in Saudi Arabia has renewed its warning to American citizens over what it described as escalating security threats from Yemen's Houthi movement, as fighting in the region continues.

In a security alert posted on X on November 3, the embassy said the Iranian-supported Houthis had "engaged in hostilities" against the kingdom. According to the alert, those hostilities have included attacks on civilian airports and other critical infrastructure, resulting in civilian casualties and severe travel disruptions.

The embassy cautioned that the violence has the potential to escalate rapidly beyond the immediate area.

The alert also confirmed a significant drawdown of US personnel. "Effective October 23, 2026, the Department of State ordered non-emergency U.S. government employees and U.S. government employee family members to leave Saudi Arabia due to safety risks," the embassy said in its post.

As part of the tightened security posture, US government employees still working in the kingdom now require special authorization from the Chief of Mission before using any airport in Saudi Arabia. The measure follows recent missile and drone attacks on airports across the country.

American citizens were urged to remain vigilant about the risk of further attacks on airports, as well as airspace closures, flight cancellations and broader travel disruptions. "Please take extreme caution if you choose to use airports in Saudi Arabia," the embassy warned.

The embassy also advised travelers to verify their flight departure status directly with airlines and airports before heading out, citing the volatile security situation.

The warning reflects growing concern in Washington over the spillover of the conflict involving the Houthis, whose campaign of hostilities against Saudi Arabia has increasingly targeted civilian infrastructure and air travel hubs. US officials have framed the precautions as necessary steps to protect citizens and government personnel amid the ongoing fighting.