Amazon is suing a Washington state agency to prevent the release of some company materials to The Washington Post, the newspaper which is owned by Amazon founder Jeff Bezos.

In a lawsuit filed last week in King County Superior Court, the Seattle-based company asked the court to block the release of documents that include “trade secrets” about Project Kuiper, an Amazon initiative to provide internet through satellites in space.

The files were collected by the Washington State Department of Labor & Industries as part of an investigation of a Project Kuiper facility between August and October of last year, according to Amazon’s lawsuit. The Post requested copies of the agency’s documents through a public records request, according to the lawsuit. — Associated Press