About 2800 files were released by the National Archives and Records Administration on Thursday, about 300 short of the number that still exists.

The remaining files were still to be redacted by the CIA to protect national security.

Mr Trump said on Thursday he had no choice but to accept those redactions but ordered agencies to review each one over the next 180 days. At the end of that period he would order the release of any information that the agencies were unable to demonstrate meets the statutory standard to keep them secret.

It was unclear what impact Mr Trump's latest announcement would have on the 180-day timetable. As of late Saturday the remaining files had yet to appear on the National Archives website.

The records had to be made public by October 26 under a 1992 law that required they be opened 25 years later, unless the president determines that releasing them would harm national security.