Paris Hilton says she is 'heartbroken' following the dying of her pet chihuahua.

The US media persona introduced on social media that she had stated farewell to her "precious" Harajuku B****, which was 23 years outdated.

Hilton, posted a sequence of photographs of the canine and a few of her different pets, together with a message paying tribute to the animal that "filled" her life with "so much love, loyalty, and unforgettable moments".

She wrote: "Today, my heart breaks as I say goodbye to my precious chihuahua."

The 42-year-old socialite and businesswoman stated her pet "lived a long, beautiful and iconic life, surrounded by love until her final peaceful slumber".

Hilton informed her 23.7 million Instagram followers that "words cannot express the immense pain I'm feeling right now".

The former actuality TV star stated that Harajuku B**** was greater than only a pet - "she was family to me, a loyal friend who was always by my side through every twist and turn life brought my way".

The canine was a "tiny ball of love, brightening up even the darkest of days", she added.

"Rest peacefully, my candy darling... You will endlessly be my little angel, endlessly missed, and endlessly cherished.

"You may be physically gone, but the imprint of your pawprints on my life will never fade," Hilton stated.

Last month, the US star shared the first pictures of her baby son referred to as Phoenix Barron Hilton Reum.

Hilton, famed for her enterprise ventures and her actuality reveals corresponding to The Simple Life, shared the black and white images on her Instagram web page.

Hilton and her associate Carter Reum had kept the birth of their child - who they'd by way of surrogacy - a secret, even from their closest family and friends.

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In March, Hilton spoke to Sky News about alleged abuse at so-called "troubled teen" boarding colleges, which she famously attended, and has since campaigned in opposition to.