Piers Morgan's return to Twitter following his account being hacked has been one filled with vitriol towards Prince Harry following the royal's TV interviews.
Harry, 38, spoke to ITV's Tom Bradby on Sunday evening about his new autobiography called Spare. He quickly followed it up with a stateside chat with Anderson Cooper on CBS.
But Piers, who has often criticised the Duke of Sussex and his wife's behaviour since their move to the US, couldn't hold back in his savage criticism of the talks.
Taking to Twitter following the first programme, the former Good Morning Britain presenter, 57, wrote: "Never seen an unhappier ‘happy man’ in my life.
"Prince Harry’s a bitter, delusional, paranoid, family-trashing halfwit exposing & exploiting the Royals’ most personal secrets for gazillions whilst wanging on with jaw-dropping hypocrisy about media intrusion."
Finishing his tweet, Piers slammed: "He’s pathetic."
The tirade came shortly after Piers had published a crude image alongside a simple emoji of a finger pointing downwards.
The upload mocked the prince by including him in a web diagram of the small bird tits. Billed under ‘Britain’s biggest tits’, including the blue tit and the bearded tit, the centre image was a pic of the prince's face and underneath read the word "colossal".
His words came after the prince opened up to Tom about some of his most personal thoughts and memories, including the aftermath of his mother Princess Diana's death.
He discussed his PTSD due to the traumatic loss when he was aged just 12. Speaking to Tom, Harry admitted he had kept his emotions bottled up for a number of years following Diana's fatal car crash in Paris in 1997.
Harry explained how he "lost a lot of memories" of his late mother - something he thinks was a "defence mechanism" and a way to deal with his loss.
And he also said he felt as though he had seen her in his dreams in the years that followed the incident.
Elsewhere in the candid discussion, Harry revealed he did not accuse the royals of racism in the explosive Oprah Winfrey interview two years ago.
Despite the perception of his comments at the time, Harry said "the British press said that" and said: "The difference between racism and unconscious bias, the two things are different.
Harry also opened up on his hope that one day he can reconcile with his brother and father, while slamming the royals for not responding to his latest comments.