Kroger board member Ron Sargent is taking the helm at the nation’s largest supermarket chain as questions about former CEO Rodney Mullen continue.

Kroger CEO Rodney McMullen is resigning following a probe into his personal conduct, the grocery chain said Monday. McMullen, who was both the chairman and CEO, is out after a company board investigation found that his personal conduct,

Kroger CEO Rodney McMullen is resigning immediately from the grocery store chain following an investigation that found his personal conduct was “inconsistent” with the company’s ethics policies.

Kroger announced Monday CEO Rodney McMullen has resigned following "a board investigation of his personal conduct." Lead Director Ronald “Ron” Sargent has been appointed interim CEO, effective immediately. Kroger said McMullen's conduct was "unrelated to the business," but "was inconsistent with Kroger’s policy on business ethics."

The Kroger Co. announced Monday that CEO Rodney McMullen has resigned. That resignation came after an investigation found McMullen guilty of “certain personal conduct.” The conduct was unrelated to Kroger’s business and its associates,

Kroger Co.’s interim leader urged employees to forge ahead following an abrupt exit of his predecessor, according to a recording of an internal meeting viewed by Bloomberg News.

Kroger's interim leader gave investors an update on the search for a new CEO following the abrupt resignation of Rodney McMullen following an investigation into personal conduct. During an investor call following Kroger Co.