Iran detained 10 US sailors after two small patrol boats reportedly drifted into Iranian waters in the Gulf, US authorities’ states.
They say the Riverine boats apparently developed mechanical problems and were taken to Iran's Farsi Island.
Tehran says the crew and the boats "will be returned promptly", Irani local media reports.
The sailors were "snooping" in Iranian waters, Iran's Fars news agency says.
It says the sailors - nine men and a woman - were held by the Iranian Revolutionary Guard.