Meghan Markle has opened up on her suicidal thoughts in a new interview, saying she "would never want someone else to not be believed."

The Sussexes spoke to CBS Sunday Morning's host Jane Pauley in their first joint interview in three years, which focused on the dangers of online bullying.

Prince Harry said parents have to be the "first responders" and added that it is "terrifying" that many parents are unsure of the telltale signs of "possible suicide."

The couple launched their new site today, Parents Network. It is a place for parents to go to for help if they think their child is being bullied online.

Meghan opened up about why the project is special to her, recalling her own struggles as a member of the Royal Family.

"When you've been through any level of pain or trauma really part of our healing journey, certainly mine, is to be able to be really open about," she said.

"I can only really scrape the surface on my experience. I would never want someone else to feel that way.

"I would never want someone else to not be believed."

Speaking of Prince Archie and Princess Lilibet, Meghan said: "Our kids are young, they're three and five, they're amazing, but all you want to do as parents is protect them.