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

U.S. District Court Judge Adrienne Nelson issued a preliminary injunction blocking the merger Tuesday after holding a three-week hearing in Portland, Oregon. Then Judge Marshall Ferguson in Seattle issued a permanent injunction barring the merger in Washington after concluding it would lessen competition in the state and violate Washington’s consumer-protection laws.

On Wednesday Albertsons said that Kroger failed to exercise “best efforts” and to take “any and all actions” to secure regulatory approval of the companies’ agreed merger transaction.

Shares of Albertsons rose more than 2% before the market open, while Kroger’s stock declined slightly.