Prince Harry has been warned a row involving his US visa is not over after secret files were released. The Duke has been fighting to keep his application private after questions were raised over his past drug use and whether he lied about it when moving to the US.

Heavily redacted court filings released Tuesday shed no fresh light on the circumstances under which Prince Harry entered the United States, the latest development in a legal fight by a far right group that is pushing to find out whether Harry lied about past drug use on his immigration forms.