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The U.S. Postal Service is closing a mail-processing operation in Alexandria and moving its duties to a mail center in Shreveport.

The Postal Service says the move is needed because of less mail moving through the system. The agency estimates the move will save $4.7 million annually.

The move is expected to be finished by October. The Postal Service estimates it will cost the Alexandria area about 36 jobs.

The agency says some employees may be transferred to the Shreveport plant or moved to other vacant positions in the Postal Services.