Fox News hosts used meaningless hand gestures to mock the interpreter at Nelson Mandela's memorial service who reportedly did not use standard sign language, even after another news organization apologized for a similar sight gag.

As NPR reported, there is “outrage among many in the deaf community” after it was revealed that the interpreter who was assigned to translate speeches for the hearing impaired during the December 10 ceremony did not use standard American or South African sign language. Wilma Newhoudt, a Deaf member of South Africa's parliament and vice president of the World Federation of the Deaf, tweeted that the interpreter was using meaningless hand gestures and suggested he be removed from the stage. The interpreter defended his work before claiming that suffered a “schizophrenic episode” during the memorial. An investigation is pending.

Fox News reported the story with Fox & Friends co-host Brian Kilmeade making meaningless hand gestures and waving his arms around while his co-hosts laughed.

Later in the show, America's Newsroom co-host Martha MacCallum meaninglessly moved her hands around while attempting to sign “I love you.”

NBC's Today show apologized for similarly mocking the incident on December 11, after a producer mimed fake sign language during the broadcast. Minutes after the gag aired, a representative for the show tweeted “We aired a joke in our 9:00 hour that was offensive. We apologize to our viewers.”

FoxNews.com reported on the Today show segment, noting that many in the Deaf community were offended.