The news anchor is reportedly being further investigated for additional misrepresentations
The initial investigation started in February after on-air claims he made regarding a 2003 helicopter incident in Iraq were disproved.
The resulting scandal left Williams, 55, suspended from his anchor position for six months without pay, and launched the investigation led by NBC journalists.
Six cases have been identified in which Williams is thought to have misrepresented events, according to the Times.
The specified incidents include the original 2003 claims, lies about his presence during a 2006 missile attack in northern Israel, and stories about a Navy SEAL gifting him part of the helicopter that crashed during the 2011 mission to kill Osama bin Laden, said the newspaper.
A previously unreported claim centers around Williams’s presence in Tahrir Square in Cairo, Egypt, during the Arab Spring in 2011, according to two Times sources close to the investigation. While it remains unclear which aspects of his account are in question, the newspaper cited Williams’s appearance on The Daily Show in February 2011 as evidence of discrepancies.
Williams, who did not reply to a Times email seeking comment, made his first public appearance following the scandal at the end of March. The anchor attended a fundraising gala for his high school, Mater Dei High School, in New Monmouth, New Jersey. He was later spotted out with daughter, actress Allison Williams in New York City on April 15.
Reps for NBC did not immediately reply to a request for comment.