"NBC Nightly News" anchor Brian Williams will be suspended without pay for six months, NBC News President Deborah Turness announced Tuesday evening:

While on Nightly News on Friday, January 30, 2015, Brian misrepresented events which occurred while he was covering the Iraq War in 2003. It then became clear that on other occasions Brian had done the same while telling that story in other venues. This was wrong and completely inappropriate for someone in Brian’s position.

In addition, we have concerns about comments that occurred outside NBC News while Brian was talking about his experiences in the field.

As Managing Editor and Anchor of Nightly News, Brian has a responsibility to be truthful and to uphold the high standards of the news division at all times.

Lester Holt, who has been substituting for Williams since Monday, will continue in that capacity, Turness writes.

The suspension comes before the conclusion of a network-led fact check of Williams' now-disputed claims that he was aboard a Chinook helicopter that was struck by a rocket-propelled grenade in 2003. In recent days, other claims made by Williams have come under scrutiny, including an eyewitness account of witnessing a body floating facedown in New Orleans in the aftermath of Hurricane Katrina.

The decision to suspend Williams was made by Turness, NBC Universal CEO Steve Burke and NBC Universal News Group Chairman Pat Fili, according to the memo.

Williams' suspension was forecasted earlier Tuesday by The Hollywood Reporter. The report, which was attributed to "network sources," said the scenario would likely include a "full-throated apology" from Williams.

As the scandal unfolded over the last few days, media reporters and critics speculated about Williams' future as the anchor of "Nightly News." The New York Times' David Carr, Newsday's Verne Gay and guests on this Sunday's broadcast of "Reliable Sources" weighed in on possible outcomes for what has become a public and protracted affair for NBC News.

In her note, Turness writes that the ordeal has been difficult for NBC News, but that the network is "bigger than this moment."

You work so hard and dedicate yourselves each and every day to the important work of bringing trusted, credible news to our audience. Because of you, your loyalty, your dedication, NBC News is an organization we can – and should – all be proud of. We will get through this together.

Here's the memo:

All,

We have decided today to suspend Brian Williams as Managing Editor and Anchor of NBC Nightly News for six months. The suspension will be without pay and is effective immediately. We let Brian know of our decision earlier today. Lester Holt will continue to substitute Anchor the NBC Nightly News.

Our review, which is being led by Richard Esposito working closely with NBCUniversal General Counsel Kim Harris, is ongoing, but I think it is important to take you through our thought process in coming to this decision.
While on Nightly News on Friday, January 30, 2015, Brian misrepresented events which occurred while he was covering the Iraq War in 2003. It then became clear that on other occasions Brian had done the same while telling that story in other venues. This was wrong and completely inappropriate for someone in Brian’s position.

In addition, we have concerns about comments that occurred outside NBC News while Brian was talking about his experiences in the field.

As Managing Editor and Anchor of Nightly News, Brian has a responsibility to be truthful and to uphold the high standards of the news division at all times.

Steve Burke, Pat Fili and I came to this decision together. We felt it would have been wrong to disregard the good work Brian has done and the special relationship he has forged with our viewers over 22 years. Millions of Americans have turned to him every day, and he has been an important and well-respected part of our organization.
As I’m sure you understand, this was a very hard decision. Certainly there will be those who disagree. But we believe this suspension is the appropriate and proportionate action.

This has been a difficult time. But NBC News is bigger than this moment. You work so hard and dedicate yourselves each and every day to the important work of bringing trusted, credible news to our audience. Because of you, your loyalty, your dedication, NBC News is an organization we can – and should – all be proud of. We will get through this together.

Steve Burke asked me to share the following message.

“This has been a painful period for all concerned and we appreciate your patience while we gathered the available facts. By his actions, Brian has jeopardized the trust millions of Americans place in NBC News. His actions are inexcusable and this suspension is severe and appropriate. Brian’s life’s work is delivering the news. I know Brian loves his country, NBC News and his colleagues. He deserves a second chance and we are rooting for him. Brian has shared his deep remorse with me and he is committed to winning back everyone’s trust.”
Deborah