According to the US media, hours after President Joe Biden had attended 9/11 memorial events at New York to mark the 20th anniversary of the deadly terror attacks, the FBI disclosed the 16-page secret document which reportedly provides details about the intelligence agency's investigation into the alleged logistical support that a Saudi consular official and a suspected Saudi intelligence agent in Los Angeles provided to at least two 9/11 hijackers.

CNN reported that the secret document, which was from 2016, still contained significant redactions.

The FBI document, which details multiple connections and witness testimony, has described Omar al-Bayoumi, who was purportedly a Saudi student in Los Angeles but whom the federal investigation agency suspected to be a Saudi Arabian intelligence agent, was deeply involved in providing logistic support, including "travel assistance, financing and lodging', to at least two hijackers of the Sept 11, 2001 attacks, CNN said in its report.

Saudi Arabia, which has long claimed it had no involvement in the 9/11 attacks, did not comment immediately on the development though earlier on Wednesday (Sept 8), in a statement issued from the Saudi embassy in Washington, it said that "any allegation that Saudi Arabia is complicit in the Sept 11 attacks is categorically false", Reuters reported.

The Saudi Arabian embassy also stated that it would "welcome the release of FBI secret documents relating to the investigation into the 9/11 attacks", according to a report by CNN.

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