REUTERS/Adam Shrimplin/File PhotoCHICAGO, Aug 7 (Reuters) - Tyson Foods (TSN.N) said on Monday it is closing four more U.S. chicken plants in its latest effort to cut costs. Tyson said it would move the work performed in the plants to newer facilities that are closer to its customers, but declined to say how many employees were affected. Tyson in May closed two other chicken plants with almost 1,700 employees. In April, Tyson said it would eliminate about 10% of corporate jobs and 15% of senior leadership roles. The company also laid off corporate employees in Chicago and South Dakota who declined to relocate to Tyson's headquarters in Arkansas.

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Persons: Adam Shrimplin, Tyson, John R, Tom Polansek, Louise Heavens Organizations: REUTERS, Tyson Foods, Thomson Locations: Finney, Holcomb , Kansas, U.S, North Little Rock , Arkansas, Corydon , Indiana, Dexter , Missouri, Noel , Missouri, Chicago, South Dakota, Arkansas