On Wednesday, the day after a federal judge in Oregon and a state judge in Washington blocked a merger between two supermarket giants, Albertsons canceled the $24.6 billion merger agreement and sued Kroger.

Under the merger agreement, Kroger and Albertsons — who compete in 22 states — agreed to sell 579 stores in places where their locations overlap to C&S Wholesale Grocers, a New Hampshire-based supplier to independent supermarkets that also owns the Grand Union and Piggly Wiggly store brands.