America's Got Talent judge's exit investigated bbc.com

The US actors' union launches an investigation into the departure of Gabrielle Union.
The US actors' union is investigating the departure of America's Got Talent judge Gabrielle Union following reports that she voiced concerns about a "toxic" culture on the show.

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.