Civil rights leader Rev. Jesse Jackson has been hospitalized, according to a statement obtained by CNN.

Jackson, 84, a protégé of the Rev. Martin Luther King Jr., is under observation for progressive supranuclear palsy (PSP), the Rainbow PUSH Coalition said Wednesday evening.

“He has been managing this neurodegenerative condition for more than a decade,” the organization said in the statement.

“He was originally diagnosed with Parkinson’s disease ; however, last April, his PSP condition was confirmed. The family appreciates all prayers at this time.”

Further details about his condition have not been released. However, there has been “significant improvement” in the civil rights leader’s condition over the last 24 hours under medical care, his son Jesse Jackson Jr. said Thursday in a

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