McDonalds made the announcement on Sunday, saying CEO Steve Easterbrook who’d been running things since 2015 had “separated” from the company when the board became aware of a consensual relationship between him and a subordinate.

In a blog post naming Chris Kempczinski as the new CEO, they say Easterbrook violated company policy and demonstrated poor judgment. Specifically, McDonald’s wrote, “Kempczinski succeeds Steve Easterbrook, who has separated from the Company following the Board’s determination that he violated company policy and demonstrated poor judgment involving a recent consensual relationship with an employee.”

Apparently, he resigned from the board as well in addition to writing an email to lower-level employees further explaining his departure.

Supposedly, Easterbrook wrote, “This (relationship) was a mistake. Given the values of the company, I agree with the board that it is time for me to move on. Beyond this, I hope you can respect my desire to maintain my privacy.”

We don’t know who the employee was or any details for the matter.