Two men found guilty of the 1965 murder of US civil rights leader Malcolm X are to have their convictions thrown out, the Manhattan district attorney's office has said.
District Attorney Cyrus Vance will hold a press conference tomorrow to announce the exoneration of Muhammad A Aziz and Khalil Islam, according to his office.
"These men did not get the justice that they deserved," Mr Vance said in an interview with The New York Times.
"What we can do is acknowledge the error, the severity of the error.
"This points to the truth that law enforcement over history has often failed to live up to its responsibilities".
The newspaper said a 22-month investigation conducted jointly by the Manhattan district attorney's office and lawyers for the two men found that prosecutors, the FBI and New York police withheld evidence that would likely have led to their acquittal.
Aziz, 83, was released from prison in 1985. Islam was released in 1987 and died in 2009.
A third man, 80-year-old Mujahid Abdul Halim, confessed to the murder and was released from prison in 2010.
He claimed during their 1966 trial that the other two men were innocent.
All three were members of the Nation of Islam, an African-American Muslim group that espoused black separatism.
Malcolm X rose to prominence as the national spokesman of the Nation of Islam.
He spent more over a decade with the group before becoming disillusioned, publicly breaking with it in 1964 and moderating some of his earlier views on racial separation.
Malcolm X was shot dead by three gunmen on 21 February 1965 as he prepared to deliver a speech in a Manhattan ballroom.
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