The disgraced former "Today" show anchor was fired after a colleague accused him of "inappropriate sexual behavior in the workplace," the network said Wednesday in a memo obtained by ABC News.
In a statement released one day later, Lauer, 59, said some of the allegations are "untrue or mischaracterized," but "there is enough truth in these stories to make me feel embarrassed and ashamed."
Lauer, who had just signed a contract last year that would put him in the anchor chair through 2018, had a contract worth a reported $20 million, according to Variety.
He had been at the "Today" since 1994 and became an official co-anchor three years later.
After firing Lauer, NBC News' human resources department said they're now sifting through Lauer's emails in an effort to bring more justice to any colleagues who may have suffered in silence.
NBC News president Noah Oppenheim promised swift action against anyone who may have known about sexually inappropriate behavior and didn’t report it.
This comes after NBC News executives learned that Oppenheim and NBC News Chairman Andy Lack had previously questioned Lauer about allegations weeks before the accuser came forward, NBC News reported. When asked about any sexual misconduct, the former anchor reportedly said that he was "racking his brain and couldn’t think of anything at all."
The network added that they couldn't find any evidence of previous complaints or any settlements reached at the time.
A rep for Lauer had no additional comment when reached by ABC News today.
NBC News correspondent Stephanie Gosk, citing a network representative, reported on the show Wednesday that a "spokesperson for the company says the accuser described inappropriate sexual behavior throughout 2014. And because of the seriousness of the accusations, together with information that it may not be an isolated incident, NBC decided to terminate Lauer's contract."
Washington, D.C. attorney Ari Wilkenfeld, who represents the unnamed accuser, referred ABC News to the following statement he gave to The New York Times and declined to comment further:
"My client and I met with representatives from NBC’s human resources and legal departments at 6 p.m. on Monday for an interview that lasted several hours. Our impression at this point is that NBC acted quickly, as all companies should, when confronted with credible allegations of sexual misconduct in the workplace."
Since his firing, NBC News confirmed that two additional women have come forward with accusations against Lauer.