Katie Price has announced she is getting divorced with her third husband Kieran Hayler

Katie Price has announced she is getting divorced with her third husband Kieran Hayler after condemning him of having an affair.

The reality TV celebrity and model posted her tweet officially on her Twitter account.

"Sorry to say me and kieran are divorcing him and my best friend jane pountney bee having a full blown sexual affair for 7 months," she wrote.

Sexy Katie Price has announced she is getting divorced with her third husband Kieran Hayler

She tweeted: "No human being deserves this especially being 6 months pregnant.

"Worse pain in the world.

Afterwards Price declared a statement on her website, clarifying her messages on social media.

"I appreciate most people will have seen my tweets on the subject of my marriage to Kieran," she wrote.

"I make no apologies for them though it will be appreciated that, sending them immediately after Kieran confirmed to me what he had been doing for the last 7 months, those tweets were a sign of my heart breaking. That he was doing it with a close friend of nearly 20 years is hard to understand."

It continued: "This statement however is from my head, not my heart. I am appalled that someone I loved, trusted and believed in has behaved in this way. If he had so little respect for our relationship I would have hoped he would have thought about our child or the one that we have on the way.”

"That he did not means he will no longer be part of my life. I will do all I can to ensure he maintains a relationship with his children should he want that.”

"I am so grateful for the love of my children and family at this time."

Couple got married in March 2013. Hayler describes himself as a constructor and a part-time model.

Price, 35, has one child with Hayler, a son, Jett, who is nine months old.

She also has two children from her marriage with Peter Andre - Princess, 6 and Junior, 8, - and a 12-year-old son, Harvey.

Earlier this week Price revealed she was pregnant with her fifth child and said it was a surprise for both her and Hayler.

"I was in shock, he was in shock - even the doctor was in shock," she said in her column in Now magazine.

"I was still in size 6-8 trousers and I always balloon when I'm pregnant. I put on 4st with Jett."

She added: "I was already about six months gone. None of us could actually believe it."

Both Hayler and Jane Pountney are yet to release a statement about Price's claims.