ANIMAL charity the PDSA has said the number of cats dying from ingesting antifreeze in the region is on the rise.

Staff at the charity's pet hospital in Woodford Bridge say the number of cases in Waltham Forest and Redbridge have risen in recent weeks but it is unclear why.

The unit's senior veterinary surgeon Elaine Pendlebury said: “So far this year we've seen an average of one case of suspected antifreeze poisoning a week but this has recently increased.

"For example, in just one week we saw four cases, which is particularly worrying.”

The RSPCA has said it was aware of issues in Chingford but cases are believed to be spread out across the region. The PDSA and RSPCA have not released further details.

It remains unclear whether someone is deliberately poisoning the animals or if the pets are accidentally consuming the chemicals.

The PDSA is urging pet owners to be vigilant and seek immediate medical attention for their animals if symptoms are spotted.

Earlier this week the Guardian reported on the case of Chingford resident Carla Wilson. Three of her cats have died from ingesting antifreeze within the past month.

The mum-of-two said she was suspicious that so many animals had died in such a short space of time.

Ms Pendlebury added: "Dogs and cats can be attracted to the sweet taste of a chemical called ethylene glycol used in antifreeze, screen wash and de-icers.

"Pets have been known to willingly lap up the liquid, despite the potentially fatal consequences.

“Symptoms of antifreeze poisoning include vomiting, increased thirst, poor co-ordination and convulsions.

"If owners suspect their pet has swallowed antifreeze, or any product they believe to be harmful, they should contact their veterinary practice immediately for advice.

"The quicker a pet receives treatment the better. For example, pets seen within 12 hours of ingesting ethylene glycol have a better chance of survival.

“PDSA strongly advises owners to keep antifreeze and other potentially harmful products away from pets.”

A spokeswoman for the RSPCA said: "Sometimes cats can come into contact with antifreeze when it is disposed of carelessly, sometimes it is put out for them deliberately.

"If anyone has any information about the poisonings in the Chingford area, please call the RSPCA on 0300 123 4999.

"Cat owners who are concerned could try keeping their cats inside for a short period."

Waltham Forest Police did not comment last week but the force is expected to make a statement in the next few days.

However the Guardian understands that officers were not investigating last week.

Click here to follow the Waltham Forest Guardian on Twitter