Albertsons is giving up on its merger with Kroger a day after it was rejected in two courts and it is suing the chain, saying it didn’t do enough to secure regulatory approval of the $24.6B agreement.

A U.S. District Judge in Oregon has blocked a $25 billion-bid by supermarket giant Kroger to take over rival Albertsons after ruling that the Federal Trade Commission's concerns about the merger's impact on market consolidation were valid.

Albertsons’ lawsuit said the rival grocery company failed to exercise its best efforts to win regulatory approval for the $20 billion deal.