Katie, who is pregnant with Kieran's second child, took to Twitter this morning (12 June) and posted a photograph of Jane with her eyes daubed in blue and white paint.
Alongside the new photograph, the former glamour model said: "Just a reminder Jane Pountney is a ugly tramp and home wrecker, keep her away from your husband or boyfriend, s***."
On 7 May, Katie stunned fans by announcing that Kieran had been having a "sexual affair" with Jane for seven months. She also declared that she would be divorcing Kieran over it.
Since then, Jane's husband Derrick Pountney has also confirmed that they are also seeking a divorce following the revelations. Jane has admitted the affair, saying that she "deeply regrets" it.
Last week, Katie returned to work for the first time since news of the affair broke and put on a brave front while dressed as a rainbow.
But underneath her smiles, the star was understandably hurting. Speaking to Reveal, Katie said: It's so sh*t, it's beyond sh*t, it's shocking, I'm in shock.
"I actually feel like someone's died, it's like a bereavement."
Days before finding out about the affair, Katie had unexpectedly found out she was six months pregnant. This weekend, Katie bared her baby bump in a new photograph while relaxing on the sofa with her son Junior.
Katie Price's craziest costumes: