Piers Morgan called out by activist as 'disgusting' after attack on Harry and Meghan's Oprah interview

Piers Morgan got into a heated debate with a guest on Good Morning Britain after furiously ranting about Prince Harry and Meghan Markle's interview with Oprah Winfrey.

The 55-year-old British broadcaster was incensed over the hugely popular TV special, in which the couple revealed secrets about their tumultuous life in the Royal Family.

The full Oprah interview will air in New Zealand on Three and Threenow tonight (March 9) at 7:30pm.

Piers' angry comments on the UK TV show were made in addition to a column in the Daily Mail in which he poured scorn on Meghan's claims of being suicidal and what he called the "racism bomb".

Dr Shola Mos-Shogbamimu, a lawyer and activist, called Piers "disgusting" in a fierce debate about the interview on Good Morning Britain, also suggesting he was "in love with the Queen".

"What about the behaviour of Harry and Meghan who are spray-gunning his family on global television as Philip lies in hospital," said Piers.

"I think it's piling hurt on the Queen, who is already suffering greatly from her husband's illness."

"You are such a disappointment," replied Dr Mos-Shogbamimu.

"I wish to God one day you would surprise me. You constantly use your platform as a wealthy, white-privileged man with powerful influence [to issue] bigoted, sexist, racist and misogynistic attacks on Meghan Markle. And you do it so shamelessly."

Piers called her comments a "load of race-baiting nonsense".

"We've done more on racial issues on this show than any other show on television."

"Listen, you might learn something," Dr Mos-Shogbamimu told Piers.

"The royal family is an institution rooted in colonialism, white supremacy, and racism. The legacy is right there. So you're now surprised that a comment would have been made by several members of the royal family about how dark Archie's skin is.

"You're more outraged that Harry and Meghan had the audacity to speak their truth than at the actual outrage of racism."

Dr Mos-Shogbamimu also called Piers "such a liar and a disgrace".

The exchange has been widely celebrated on social media, particularly as it happened on International Women's Day.