Reports of U.S. sailors' prompt release is speculation - Iran's Revolutionary Guards

DUBAI (Reuters) - Ten U.S. sailors detained by Iran's Islamic Revolutionary Guards Corps (IRGC) appeared to have entered Iranian waters by mistake and will probably be released, the IRGC's top naval commander said on Wednesday.

Iran detained the sailors aboard two U.S. Navy patrol boats in the Gulf on Tuesday in an incident that rattled nerves days ahead of the expected implementation of a landmark nuclear accord between Tehran and world powers.