A cause of death was not immediately known.
In the late 1950’s he began working on the civil rights movement, joining the Southern Christian Leadership Conference and traveling with the Student Nonviolent Coordinating Committee.
He was a leader in the Student Nonviolent Coordinating Committee in Mississippi when three civil rights workers were murdered by a group of men that included a Mississippi deputy sheriff. He also helped lead an ill-fated attempt to sit African-American delegates from Mississippi at the segregated 1964 Democratic National Convention.
“Bob Moses was a giant, a strategist at the core of the civil rights movement,” Johnson said in the statement released Sunday. “Through his life’s work, he bent the arc of the moral universe towards justice, making our world a better place. He fought for our right to vote, our most sacred right.”
“He knew that justice, freedom and democracy were not a state, but an ongoing struggle. So may his light continue to guide us as we face another wave of Jim Crow Laws. His example is more important now than ever,” the statement continued.
CNN reached out to the family for more information on his death.
CNN’s John Blake, Dianne Gallagher and Hollie Silverman contributed to this report.
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