US Commerce Secretary Wilbur Ross, whose name cropped up in the "Paradise Papers" investigation into offshore tax havens, said the appropriate authorities knew of his controversial investments, a media report said.

Ross told CNBC in an interview on Monday that the claim that he tried to keep his relationship with the Venezuelan oil firm hidden is "totally wrong" and that he filled out in triplicate the documentation requested by the US Office of Government Ethics to disclose his business interests, Efe news reported.