London, Nov 1 Katie Price a.k.a Jordan has stepped up security at her stables after sinister threats were made to kill one of her beloved horses.

The 31-year-old glamour girl has received four letters branding her a 'slag' and a whore and vowing to slash all her eight animals, including a 170,000-pound dressage horse called Cross Dresser.

"She was in tears about the threats. She can't understand why someone would be so evil. She got very anxious on Friday. It was basically a panic attack. She needed to sit down and be comforted by friends. She can understand why people might not like her but to call her all those evil names and threaten innocent animals is disgusting," News of the World quoted a pal as saying.

Police were called in to investigate over the threatening messages that had been published on a mixed martial arts website.

Jordan's boyfriend Alex Reid, 34, is a mixed martial arts cage-fighter.

The website message, which says "Don't wear the T-shirt again or the horses will be killed", is believed to have been posted by a person angered by Jordan climbing into the cage following a recent Reid fight victory wearing a top with "The Champ" emblazoned on it.

A rep for Hampshire Police said: "We have received information that threatening or inappropriate comments have been made on a website and are investigating."

A spokesman for Jordan said: "Alex did meet with police on Friday night to discuss threats made, including specific threats to kill the horses. Katie is satisfied that security is already extremely tight at the stables. Both Kate and Alex are both co-operating fully with the police and are grateful for their involvement." (ANI)