SIX cats have been killed by drinking antifreeze.

Vets are not sure if the animals were poisoned intentionally, but are urging owners to take extra care when using the chemical.

Cats love the sweet taste of antifreeze, but it crystallises in their liver causing renal failure.

Just a teaspoon of the liquid, used in car radiators and screen wash, can be fatal. The six cats were taken to Cherrydown Vets, in Cherrydown West, Basildon.

Nicola Humphreys, 36, of Scott Road, Chadwell St Mary, was left heartbroken after losing two of her beloved cats, Bo and Tye, last week when they were taken ill after drinking antifreeze.

Miss Humphreys, who also has a labrador and another kitten, said: “I can’t point the finger at anyone, but there is something suspicious about all these incidents. I am absolutely devastated over this.

“I have another kitten but I’m not going to let her outside. You can’t trust anyone.”

Miss Humphreys claims that two other cats have gone missing from her road, and another cat was found dead in a neighbour’s garden.

Animal lovers are advised to seek urgent medical help should their pet exhibit any signs of anti-freeze poisoning, as survival rates are poor.

Symptoms include stumbling, vomiting, excessive urination and lack of appetite.

Shawn Plunkett, assistant manager at Cherrydown, said: “If you have anything to do with antifreeze, you should clear spills, try to ensure your pet does not drink from puddles or let them get into your garage.

“Anyone who thinks their pet may be poisoned should get them to us as quickly as they can to try and ensure a better prognosis.”