A man who provided sign language interpretation on stage for Nelson Mandela’s memorial service, attended by scores of heads of state, was a “fake,” the national director of the Deaf Federation of South Africa said on Tuesday.

The unidentified man seen around the world on television next to leaders like U.S. President Barack Obama “was moving his hands around but there was no meaning in what he used his hands for,” Bruno Druchen, the federation’s national director, told The Associated Press.

South Africa’s government told AP it is preparing a statement. Jackson Mthembu, spokesman for the governing African National Congress party, declined to comment. “Government will be able to assist you,” Mthembu said.

Druchen and two other sign language experts said the man was not signing in South African or American sign languages. South African sign language covers all of the country’s 11 official languages, according to the federation.

Nicole Du Toit, an official sign language interpreter who also watched the broadcast, said in a telephone interview that the man on stage purporting to sign was an embarrassment.

(Below are videos of the fake interpreter)

“It was horrible, an absolute circus, really, really bad,” she said. “Only he can understand those gestures.”

South African parliament member Wilma Newhoudt-Druchen, a member of the ruling party who is deaf and who is married to Druchen, also said the man communicated nothing with his hand and arm movements. AP interviewed both Druchen, who also is deaf, and Newhoudt-Druchen by telephone using an interpreter.

(AP)