CNN President Jeff Zucker is stepping down over a previously undisclosed “consensual relationship” with a colleague.

The network’s media correspondent Brian Stelter shared Zucker’s statement in a tweet.

Zucker said that the relationship came to light as the network investigated its now-former anchor Chris Cuomo.

“As part of the investigation into Chris Cuomo’s tenure at CNN, I was asked about a consensual relationship with my closest colleague, someone have worked with for more than 20 years. I acknowledged the relationship evolved in recent years. I was required to disclose it when it began, but I didn’t. I was wrong,” Zucker wrote.

He continued, “As a result, I am resigning today. I came to CNN on January 28, 2013. Together, we had nine great years. I certainly wish my tenure here had ended differently. But it was an amazing run. And I loved every minute. I am grateful to the thousands of incredibly talented CNN and Turner Sports employees who helped make this such a joy for me, and such a success for all of us.”

“I wish each of you nothing but the best in the years ahead. With gratitude and much love. Jeff,” he added.

Read the statement below:

Cuomo was fired by the network last year after it was revealed that he helped his brother, former New York Gov. Andrew Cuomo (D), respond to allegations of sexual harassment.