The U.S. embassy in Qatar emailed a message to U.S. citizens in the Gulf country on Monday recommending that they shelter in place until further notice. The message noted the recommendation was "out of an abundance of caution" and offered no further information.

Security situation in Qatar ‘stable,' advisory issued by number of embassies ‘do not necessarily reflect existence of specific threats,' says Qatari Foreign Ministry

WASHINGTON — The US Embassy in Qatar on Monday advised Americans in the Gulf country to shelter in place until further notice as the region braces for Iran’s retaliation following US strikes on its nuclear sites.