Mid-Ship Group has agreed to pay some $872,000 over what the US Treasury Department calls "apparent violations" of US sanctions against Iran in brokering two bulker charters.

The Port Washington, New York-based shipbroking, logistics and ship-finance group has admitted to no wrongdoing in the case.

The recent revival of the case by the Treasury Department's Office of Foreign Assets Control (Ofac) and the large fine comes as the Donald Trump administration is taking a harder line against Iran.