COLUMBIA, Mo. (AP) — A Columbia Public Schools middle school principal is suing the school district, claiming she was passed over for a different principal job because she is a black woman.

Melita Walker, principal of West Middle School, applied for the Hickman High School position in 2017. She says in her lawsuit that an all-white panel of interviewers gave the job to a white man, although she was the only candidate with a doctorate in education.

The Columbia Missourian reports the lawsuit claims Walker has unsuccessfully applied for many other jobs and has faced several instances of race and sex discrimination.

The district already faces two discrimination lawsuits filed last year by Rachel Henderson and Andrew McCarthy, assistant principals who are married.

A district spokeswoman said the district couldn't comment on pending litigation.

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Information from: Columbia Missourian, http://www.columbiamissourian.com