Teachers opposed to a new Arizona law that targets a school district's ethnic studies program are suing to overturn the measure.

KGUN-TV says the lawsuit filed Monday names outgoing Arizona schools superintendent Tom Horne and the State Board of Education as defendants.

The Tucson Unified School District program offers specialized courses in African-American, Mexican-American and Native-American studies.

Horne, who is running for attorney general, says the district's Mexican-American studies program teaches Latino students that they are oppressed by white people.

Horne pushed for the law that was signed by Gov. Jan Brewer in May. The measure prohibits classes that advocate ethnic solidarity or that promote resentment toward a certain ethnic group.

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Information from: KGUN-TV, http://www.kgun9.com/news/