On Thursday, Missouri Gov. Eric Greitens was indicted by a grand jury in St. Louis with one felony count of invasion of privacy from an extramarital affair in 2015.

In January, Greitens admitted to having an extramarital affair following allegations made by his mistress’ ex-husband that the Republican governor took nude photos of her to use as blackmail to keep their affair a secret. St. Louis prosecutor Kimberly Gardner subsequently announced they were launching a full investigation into the matter, prompting the indictment.