The FBI has released a newly declassified document that looks into connections between Saudi citizens in the US and two of the 9/11 attackers.
Relatives of victims have long urged the release of the files, arguing Saudi officials had advance knowledge but did not try to stop the attacks.
But the document provides no evidence that the Saudi government was linked to the 9/11 plot.
Fifteen of the 19 plane hijackers were Saudi nationals.
Ahead of the declassification, the Saudi embassy in Washington welcomed the release and once again denied any link between the kingdom and the hijackers, describing such claims as “false and malicious”.
The document was declassified on the 20th anniversary of the deadliest terror attacks on US soil – almost 3,000 people were killed after four planes were hijacked – and is the first of several expected to be released.
Some families of the victims had put pressure on President Joe Biden to declassify the documents, saying he should not attend Saturday’s commemoration ceremonies in New York if he was not prepared to release them.