Oman's air force has evacuated three US citizens from war-torn Yemen to the Omani capital Muscat following a request for aid from Washington, the sultanate's foreign ministry said Thursday.

Oman "coordinated with Yemeni authorities to find them (the Americans) and allow them leave" late Wednesday from the airport in Yemen's rebel-controlled capital Sanaa, the ministry said in a statement carried by state news agency ONA.

The brief statement gave no details on the identities of the US citizens.