Katie Price is 'suspected of sending an anonymous poison pen' letter to a family member of her ex-husband Kieran Hayler, in which his fiancée Michelle Penticost is described as a 'w**re'.
It is claimed the note had a Heathrow Airport postmark on the envelope and Kieran believes it was sent just a few hours before Katie jetted to Thailand earlier this month.
A source told the Daily Mirror: 'Michelle has passed the letter to the police. It’s been a very upsetting time. They just want to move on.'
Controversial: Katie Price, 43, is reportedly suspected of sending an anonymous 'poison pen' letter to a relative of her ex Kieran Hayler, describing his fiancée Michelle Penticost as a 'w**re
It is understood the envelope was licked to seal it, meaning a DNA test could be used in a bid to identify who closed the covering.
MailOnline has contacted representatives for both Katie and Kieran for comment.
Separately, former glamour model Katie, 43, was charged with harassing the fiancée of her former husband Kieran this week and will appear in court when she returns home from Thailand.
Clues? It is claimed the note had a Heathrow Airport postmark on the envelope and Kieran believes it was sent just a few hours before Katie jetted to Thailand earlier this month
MailOnline learned Katie, currently away with fiancé Carl Woods, will appear before magistrates in Crawley next month for allegedly breaching a restraining order against Michelle.
The troubled reality star was arrested on January 21 over claims she sent an abusive text to Michelle.
She spent the night in a cell after being quizzed by officers at Worthing Police station who had earlier picked Katie up from her home in Horsham after a report was made.
Vacation: Separately, Katie was charged with harassing Michelle and will appear in court when she returns home from Thailand (pictured in Thailand last week with fiance Carl Woods)
Katie allegedly branded flight attendant Michelle a 'c***ing w***e piece of s***' and a 'gutter s**g.
MailOnline understands that Katie may have breached the order a second time when she sent an anonymous letter attacking Michelle to a relative just before flying out to Thailand.
A source said: 'Katie is playing a dangerous game and her actions have led her into deep trouble.
Happy: The couple were pictured holding hands in personalised shorts during the Thailand trip recently
'Kieran and Michelle were deeply concerned after a relative received a letter, believing Katie is ignoring the rules of the restraining order as this is the second time it's happened in three months.
'It was sent anonymously from Heathrow on the day she left for Thailand.
'They know it's her and are concerned by her unpredictable behaviour.'
A police source told MailOnline: 'Katie Price was arrested a few weeks ago for breaching a restraining order placed against her following an argument with the fiancée of her former partner, Kieran Hayler.
'Now she is believed to have written an anonymous note attacking Michelle Penticost via one of her family members.
Loved-up: Katie Price pictured with boyfriend Carl Woods lock lips on their holiday in Thailand this month
'As such Katie has been charged with harassment and will appear before Crawley magistrates next month.'
Mother of five Katie was banned from contacting Michelle, 39, 'directly or indirectly' after swearing at her in a school playground in 2019.
Breaking the terms of the restraining order carries a maximum prison sentence of five years.
Katie also risks jail time for being arrested while still on licence for her drink-drive shame.
Michelle has grown close to Katie's two children she shares with Kieran, son Jett, eight, and daughter Bunny, seven.
She also has her own child with the ex-stripper, seven-month-old son Apollo, and a ten-year old son Valentino from a previous relationship.
Other couple: Kieran Hayler with fiancée Michelle Penticost whom Katie is alleged to have harassed
The couple met in 2018 and got engaged the following year.
Former Loose Women host Katie travelled to the Far East with Carl for her latest bout of cosmetic surgery - a boob job and full body liposuction procedure - and has remained there for over two weeks.
The couple, who got engaged last April, have experienced a
