BLOOMINGTON (AP) — The Mall of American has launched a $325 million expansion that will add another 50 to 75 retailers to the mega mall.

Mall officials kicked off the project Tuesday. The expansion also will add a new Food Hall, underground valet parking and a second atrium.

Also planned are a 342-room JW Marriott Hotel and a seven-story office building.

The expansion kicks off a 10-year plan to nearly double the size of the Bloomington mall.

The Mall of America already attracts about 42 million visitors a year. Eventually, mall officials hope to bring 60 million visitors a year to the expanded mall.

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