POLICE are investigating after two cats are thought to have been poisoned in north Pembrokeshire.

Six-year-old family cat Cally had to be put down yesterday, after drinking what her owners think was anti-freeze.

Cally's two-year-old kitten Marmalade received veterinary treatment, but had to be put down on Saturday after taking a turn for the worst.

Poppy Cheshire, from Trefin, said she first supected something was wrong when Cally refused to go out in the sun with her three kittens.

"The rest of them went out to sunbathe, but she just stayed in the shade," she said.

"She just wasn't herself.

"We rushed her to the vets, but her body was already shutting down."

The family took the heartbreaking decision to put Cally to sleep.

"It was so difficult, she belonged to my step mum who died in September.

"She and my mum were together for 13 years, and Cally was one of the last things we had to remember her by."

Poppy said she is now keeping the family's two other cats, and dogs, inside, for fear that they will be hurt too.

"Our neighbours are doing the same," she said.

In 2013, Poppy's family lost two cats to poisoning, and vets have agreed that the symptoms so far match that of anti-freeze poisoning.

Poppy said symptoms to watch out for include not responding when called, not accepting food, shaking, or being unable to stand properly.

Anyone who is concerned about an animal is advised to seek veterinary assistance immediately, as poison can quickly take hold.

"If I could talk to the person who did this, I would just want them to know how much this hurts people," she said.

"These cats are our family and it's heartbreaking to see them in this condition."

If you suspect animal cruelty, your are urged to contact the RSPCA information line on 0300 1234 999.