MSNBC host Toure apologized Tuesday for a tweet about the “power of whiteness” in which he appeared to suggest that Holocaust survivors benefitted from their skin color, saying he was “very sorry” and would “make sure this doesn’t happen again.”

Toure’s Twitter account had lain dormant since the May 23 post, but after facing a torrent of negative tweets and the criticism of a major Jewish organization, Toure posted a series of apologetic messages:

On Tuesday, Efraim Zuroff, the Israel office director of the Simon Wiesenthal Center, a Jewish human rights group, told TheBlaze that the suggestion that Jews who had faced a genocide benefitted from their skin color was “obviously absurd and smacks of intense and disgusting anti-Semitism. It’s reverse racism basically.”

Toure was responding to another Twitter user who had written, “My family survived a concentration camp, came to the US w/ nothing, LEGALLY, and made it work.”