Iranian and Russian officials spoke on Tuesday 10 November about how to get round Task Force Iron Gate, CBS News reports.
CBS describes the task force as the US plan to block overland trade into Iran and prevent trade across the Caspian Sea. The White House said on 9 November that Task Force Iron Gate was "in full force and effect".
CBS does not name the officials who took part or say whether anything was agreed. The report has not been independently checked.