Gabrielle Union

America's Got Talent judge Gabrielle Union's departure investigated

Variety magazine said the LA's Finest star had raised concerns with producers and was leaving after just one series.

Sag-Aftra, which represents actors and performers, is looking into the case.

NBC, which makes the show, said it was "committed to ensuring a respectful workplace for all employees".

Last week, the former judge's husband, ex-basketball player Dwyane Wade, said she had been "fired" and he was "still waiting on a good answer" to explain why.

Gabrielle Union's Nate Parker pain

In the film Union portrays Esther, a slave who suffers a brutal rape. The actress writes in the Los Angeles Times of being raped at gunpoint 24 years ago in the storeroom of the Payless shoe store where she worked.