US President Donald Trump is planning to block the release of information from thousands of classified documents related to the assassination of former President John F. Kennedy (JFK) in November 1963, according a new report.

Trump administration and other government officials would not identify what specific information regarding Kennedy’s murder might be kept secret on Trump’s orders, Politico Magazine reported on Friday.

More than 3,000 documents related to the JFK assassination are scheduled to be made public in less than a week by the National Archives.

JFK Assassination Records Collection Act of 1992 states that the federal government must release them by Oct. 26, 2017.

However, the officials told the publication that there were fears over releasing classified documents that were created in the 1990s, saying it could provide important information on recent intelligence and law enforcement operations.

White House spokeswoman Lindsay Walters said the Trump administration is aiming “to ensure that the maximum amount of data can be released to the public" under the act.

Kennedy served as the 35th president of the United States from January 1961 until his assassination in November 22, 1963, in Dallas, Texas.

The President's Commission on the Assassination of Kennedy, known unofficially as the Warren Commission, was established by former President Lyndon B. Johnson in November 1963 to investigate the assassination of JFK.

The commission's final 888-page report released in September 1964 concluded that Lee Harvey Oswald acted entirely alone in assassinating President Kennedy.

However, many researchers are unconvinced by the official government account and argue that Oswald was part of a conspiracy to kill Kennedy.

According to late Iranian journalist Hamid Golpira, “Three future US presidents, Lyndon B. Johnson, Richard Nixon, and George H.W. Bush, were in Dallas on November 22, 1963, the day Kennedy was assassinated.”

“It is said that this strange coincidence was actually arranged to give the future presidents a stark warning of what would happen to them if they disobeyed orders,” he wrote in his article Money behind JFK hit.

Former US president John F. Kennedy (center) with CIA directors Allen Dulles (left) and John McCone

Many researchers say Israel also had a motive to kill Kennedy because the president was opposed to the regime's nuclear weapons program at Dimona which he believed could instigate a nuclear arms-race in the Middle East.

Kennedy encountered tensions with the Israelis regarding the production of nuclear materials in Dimona.

Israel resisted pressure by the Kennedy administration to open its nuclear facilities to International Atomic Energy Agency (IAEA) inspections and misled American scientists who visited Dimona in 1962.