NBC News chairman Andrew Lack said in a memo to staff that it was the first complaint lodged against Lauer in his career at the network. But he said "we were also presented with reason to believe this may not have been an isolated incident."

Just last week, CBS News fired one of its own morning anchors, Charlie Rose, after a report in The Washington Post chronicled years of sexual misconduct.

Guthrie said she was informed just moments before going on the air.

"This is a sad morning at 'Today' and NBC News," she said. "As I'm sure you can understand, we are devastated. I'm heartbroken for Matt. He is my dear, dear colleague."

Guthrie also said she was heartbroken for the woman who accused Lauer of misconduct, noting "it's long overdue" that women feel comfortable coming forward against abusive men.

Hoda Kotb, on the set with Guthrie, said she has known Lauer for years and "loved him as a friend and a colleague."
"It's hard to reconcile the man who walks in everyday" with the person who was identified in the complaint. #SPMGMedia