US embassies across the Middle East are being evacuated, with staff and diplomats' families evacuated in a chaotic manner, CNN reported, citing sources.
According to the network, the departures are linked to the threat of regional escalation.
Diplomats described the situation as a "disappointing and chaotic déjà vu", noting many had only recently returned to their posts after a previous round of evacuations.
Reuters reports the State Department intends to withdraw embassy personnel in light of a potential operation against the Houthis in Yemen.
Earlier, intelligence services warned Secretary of State Marco Rubio that Iran was plotting attacks on American diplomats in the region.