General Ali Fadavi accused those detained of "unprofessional" acts.
But he suggested the group, who are being held by the guards, could be released soon.
Despite last year`s breakthrough nuclear deal tensions remain between the US and Iran.
US apologises for Iran naval incursion- Revolutionary Guards
13 January 2016
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The US has apologised to Iran after 10 American sailors were arrested for entering Iranian waters, the commander of Iran`s Revolutionary Guards naval forces has said.
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