UPDATED:Comcast dropped a bombshell Sunday, announcing thatNBCUniversalCEOJeff Shellis leaving the company, effective immediately.
The mutual decision comes after an investigation led by outside counsel into a complaint on inappropriate conduct by Shell.
Today is my last day as CEO of NBCUniversal, Shell said in a statement.

Rob Latour/Variety/Shutterstock
Nothing is more important than how we treat each other.
You should count on your leaders to create a safe and respectful workplace.
Roberts and Cavanagh sought to reassure NBCU staff.

We are fortunate to have an experienced, word-class group of executives leading this incredible company.
Shell is a Comcast veteran.
He became CEO of the companys NBCUniversal division in January 2020, succeeding Steve Burke.
Previously, Shell was Chairman of NBCUniversal Film and Entertainment.
Prior to that, he served as Chairman of NBCUniversal International and President of Comcast Programming Group.
He has been a trusted lieutenant of Comcast CEO Roberts for many years.
Cavanagh joined Comcast in 2015 as chief financial officer.
He was promoted to president last fall to work closely with Roberts.
Jill Goldsmith contributed to this story.