CNN report the news four US officials:

• United States has video and photos that show an Iranian navy boat removing an unexploded mine attached to the hull of the Japanese-owned chemical tanker Kokura Courageous
• One of the officials said a US military aircraft overhead recorded a full motion video of an Iranian boat moving alongside one of the stricken tankers and removing an unexploded limpet mine from its hull. 
• The official said the imagery shows a person on board that small boat grabbing the unexploded mine.