Feedback on Twitter was swift, with Tony Bruno (@TonyBrunoShow) saying: "Wow, just Wow. NBC should be ashamed beyond belief and ridiculed by ALL!"
Ruby Cramer (@rubycramer) declared: "Most awkward network split screen ever: NBC skips 9/11 moment of silence for Kardashian Interview."
NBC defended its decision, saying it aired other segments on Today about the September 11 terrorist attacks, including an interview with a World Trade Center survivor earlier in the show.
For its later West Coast feed, the network showed the commemoration of the first moment.
Ceremonies took place at the World Trade Center and the White House lawn.
In a similar gaffe during the London Olympics opening ceremony, NBC cut away from a tribute to the victims of the 2005 London bombings, instead airing a Ryan Searcrest interview.
- AP with nzherald.co.nz