Columbia Universityannounced Friday that its interim president, Katrina A. Armstrong, was stepping down.

According to astatementfrom Columbia, Board of Trustees Co-Chair Claire Shipman has been appointed Acting President, effective immediately.

Katrina has always given her heart and soul to Columbia.

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Dr. Katrina A. ArmstrongJorg Meyer Photography/Columbia University via AP

We appreciate her service and look forward to her continued contributions to the University.