A former high-ranking black employee at Morgan Stanley sued the investment firm Tuesday in the Eastern District of New York, arguing that the firm has systematically mistreated black women and that she lost her job because she pushed for more diversity.

Along with a proposed class action suit on behalf of black female employees of Morgan Stanley, Marilyn Booker is filing a charge of discrimination with the Equal Employment Opportunity Commission, according to court papers.

See it first on Legal RadarBooker served as Morgan Stanley's global head of diversity from 1994 to 2010, but she was "inexplicably" removed from that role soon after James Gorman became Morgan Stanley's CEO, according to the suit, which was filed by Wigdor partner Jeanne Christensen.