Meghan Markle tells Oprah Buckingham Palace is spreading lies about her and Prince Harry in shocking new clip

Meghan Markle has spoken out against 'The Firm' - another name for the Royal Family - in an explosive new clip from her tell-all interview with Oprah Winfrey. 

The Duchess of Sussex accused Buckingham Palace of spreading lies about her and her husband Prince Harry, saying she no longer had anything to lose. 

When asked by Oprah how she felt about the Palace "hearing her speak her truth", the former Suits star replied: "I don't know how they could expect that after all of this time we will still just be silent if there's an active role that The Firm is playing in perpetuating falsehoods about us." 

"If that comes with the risk of losing things, I mean, there's a lot that's been lost already," Meghan added. 

It's the first footage of Meghan speaking that has been released by CBS ahead of Oprah's unprecedented interview with the Duke and Duchess, who sent shockwaves through the monarchy when they stepped back from the Royal family last year. 

In another teaser clip Oprah insists that "no topic is off-limits", telling Meghan and Harry at one point: "you've said some pretty shocking stuff here." 

Harry also seemingly addresses the untimely death of his mother Princess Diana, who was killed in a car crash while being chased by the paparazzi. "My biggest fear was history repeating itself," he tells Oprah, appearing to compare Diana's experience to the media frenzy and public pressure his wife Meghan had suffered since becoming a royal. 

The two-hour-long special will air next week, just days after bombshell claims were published by The Times alleging Meghan had bullied several royal aides during her time at Kensington Palace. 

Meghan has denied the claims, saying she was "saddened by this latest attack on her character" in a statement given by a spokesperson. Meanwhile, Buckingham Palace said they were "very concerned" by the accusations, and would be launching an investigation. 

CBS Presents Oprah with Meghan and Harry will air in Aotearoa exclusively on Three and online on ThreeNow at 7.30pm Tuesday, March 9.