'Concerned and disappointed': Warner Bros. address the wave of misconduct allegations to have hit some of their shows

Ellen DeGeneres has made headlines for allegations against her persona and talk show this year. Photo / Getty Images

Current and former employees at The Ellen DeGeneres Show and TMZ, both produced by WarnerMedia, have spoken up about their negative experiences in the workplace and now the company's executives have reassured staff they are taking measures to investigate and instigate change.

According to BuzzFeed, WarnerMedia chief executive Jason Kilar sent an email to staff which read: "I am both concerned and disappointed by public reports regarding patterns of unacceptable behavior that have been raised in recent weeks."

In August, executive producers Ed Glavin and Kevin Leman and co-executive producer Jonathan Norman were fired from 'The Ellen DeGeneres Show'. Photo / Getty Images

He told employees the company would be communicating to all existing and prospective partners, including the "active and potential motion picture and television productions", that there would be a clear requirement to ensure "people be treated with dignity and our intention [is] to sever ties where patterns of behaviour are at odds with that requirement".

The executive confirmed a third party had been brought in to carry out an "objective, proactive review across our production business" in order to explore if there is "any pattern of behaviour that is at odds with our need to treat each other with dignity".

Warner Bros. chief executive Ann Sarnoff also sent a memo to staff, in which she said she had "empowered, and will hold accountable, the Studios and Networks HR and Legal teams to act on any issues that are brought to them".

She added: "These groups are a safe harbour where you can register any concerns."

Last month executive producers Ed Glavin and Kevin Leman and co-executive producer Jonathan Norman were fired from The Ellen DeGeneres Show after allegations of sexual harassment and a culture of fear and intimidation.

Ellen subsequently apologised to staff, and she recently confirmed she will be addressing the controversy when the show returns next week.

She said: "I can't wait to get back to work and back to our studio. And, yes, we're gonna talk about it."