MP: Andy Duncan's statement "pathetic"
Speaking to Sky News, Vaz said that the allegations of racism and bullying were "serious" and added that "the only people who don't appear to be taking it seriously are Channel 4."
"I thought the statement made by Andy Duncan was pathetic," he said. "He did not want to confront the really serious issues that were in front of the viewers and in front of management. He should listen to the chorus of criticism."
Earlier this week, Vaz tabled an early day motion expressing "concern" over events in the house. The EDM has so far been signed by 21 MPs.