As speculation about "Nightly News" anchor Brian Williams' tenure continues to circulate inside and outside NBC News, Deborah Turness, the chief of the news division, has broken her silence.

In a memo released internally, and to the press, she said,  "We’re working on what the best next steps are." 

The memo, without mentioning Williams' on-air retraction of a story he's circulated for years -- that he was aboard a helicopter downed by an RPG -- did make make reference to a "team dedicated to gathering the facts to help us make sense of all that has transpired." That's presumably the internal investigation launched earlier Friday, and since confirmed to the press. 

Here it is, in full: 

"All, This has been a difficult few days for all of us at NBC News. Yesterday, Brian and I spoke to the Nightly News team. And this morning at the Editorial Exchange, we both addressed the wider group. Brian apologized once again, and specifically expressed how sorry he is for the impact this has had on all of you and on this proud organization. As you would expect, we have a team dedicated to gathering the facts to help us make sense of all that has transpired. We’re working on what the best next steps are – and when we have something to communicate we will of course share it with you. Since joining NBC News, I’ve seen great strength and resilience. We are a close-knit family, and your response this week has made that even clearer. As a relentless news agenda marches on, thank you again for continuing to do what we do best – bring the most important stories of the day to our audience. Deborah"