Citing regulatory challenges at the state and federal level, Walmart Inc. announced Friday in an internal memo that it will be discontinuing the sale of e-cigarettes and vaping products.

“Given the growing federal, state and local regulatory complexity and uncertainty regarding e-cigarettes, we plan to discontinue the sale of electronic nicotine delivery products at all Walmart and Sam’s Club U.S. locations. We will complete our exit after selling through current inventory,” a representative for Walmart said in an email to Corporate Counsel.