The US Embassy in Riyadh asked its citizens to be more careful.
The American embassy in Riyadh, the capital of Saudi Arabia, asked its citizens in the Middle East to be more careful.
In a message on Channel X, this embassy warned against "the growing threat of militant armed attacks by the Iran-backed Houthis and Iran's efforts to harm US government officials in the region."
The American embassy statement said that the Houthi attacks on Saudi Arabia led to the killing of civilians.
The American embassy also warned: "These conflicts could quickly spread to areas beyond the current limits."