In a filing with the Securities and Exchange Commission, Office Depot - the nation's second-largest office supply retailer - said three of the facilities will close. The cuts were estimated to generate $15 million in annual savings.

Some operations will move to call centers located in Boca Raton and Norcross, Ga., the company said, affecting offices in Ohio, California, Connecticut, Georgia, Kansas and Texas.

The SEC filing Friday added that Office Depot "is continuing to review its cost structure in other operating units."

The announcement comes shortly after third-quarter earnings fell nearly 2 percent as back-to-school and European sales were weaker than expected, and follows Bruce Nelson's resignation as chairman and CEO. His temporary replacement, Neil Austrian, has said a lack of "execution and focus" plagued the company.

Austrian was a board member before he replaced Nelson.