Affiliated Media Inc., the parent of MediaNews Group, announced Friday that it will file for chapter 11 bankruptcy reorganization.

MediaNews Group owns a controlling interest in the California Newspaper Partnership.

Local newspapers owned buy the affected entities include The Sun, Redlands Daily Facts, and the Inland Valley Daily Bulletin.

The bankruptcy action has already been “pre-packaged” and is not expected to affect the operations of individual papers.

MediaNews Group owns 54 daily newspapers.