Sri Lanka, Feb. 9 -- A report from Special Counsel Robert Hur has raised serious questions about Joe Biden's memory, provoking a strong reaction from the US president.

Declining to prosecute Mr Biden for retaining troves of classified documents, Mr Hur - who served in the Trump administration - said the 81-year-old would likely present himself at trial as "a sympathetic, well-meaning, elderly man with a poor memory".

Shortly after the report was released, President Biden held a surprise news briefing at the White House, telling reporters: "My memory is fine."

The report found that the president's memory "appeared to have significant limitations".

The quotes are among dozens of examples in the report which raise questions about Mr Bide...