POLICE are going to "pay attention" to a popular woods after a number of posts on social media warning dog owners about "raisins and poison" on the main trail.

West Yorkshire Police confirmed officers would keep an eye on Calverley Wood after several posts emerged on social media website, Facebook, over last weekend and into this week.

A member of the public first shared a message from their anonymous friend on a Facebook community page.

It said: "Hi everyone, please can you share around to people in the Calverley area.

"I was walking there this morning (Sunday, May 31) and loads of raisins and poison had been laid out on the main trail of Calverley Wood.

"My dog unfortunately has eaten some and is in the emergency vets.

"Please could you share around because I would hate for this to happen to anyone else."

Vets Now, a dedicated out-of-hours emergency and critical care service for pets, states on its website that grapes and raisins are toxic to dogs.

If a dog eats either of the items, they could end up with acute kidney failure or even die.

The Vets Now website adds: "While all forms of grapes are bad for dogs, it’s thought the dried versions of the fruits are more likely to cause severe symptoms if eaten by your dog.

"It’s not clear exactly which substance or chemicals in grapes causes poisoning in dogs, but even a very small number of grapes, raisins, sultanas or currants can cause severe problems for some.

"Our vets have seen emergency cases when just one grape has been eaten but in other cases, a handful may cause no symptoms."

The initial warning on the Facebook community page was shared a number of times across other pages and groups.

Since then, another worried pet owner, Stephanie Crawshaw, said she had walked their dog in Calverley Wood on Sunday, May 1 and then the day after her pooch was suffering from diarrhoea.

Mrs Crawshaw took her dog to the vets and was told they didn't know if it was kidney poisoning or just a coincidence.

She has continued to monitor her dog just in case.

She said: "I think the not knowing is awful for dog owners, especially because raisin poisoning isn’t easy to diagnose - it’s just worrying wondering whether he has eaten anything he shouldn’t."

A separate post to the original message emerged on another community page later in the week warning people again after another dog had apparently fallen ill following a walk in Calverley Wood.

Someone also commented on the original post to share a photo of some raisins they had found laid out on a stone at the side of the main trail in the woods.

They said it looked like the raisins had been deliberately put in a place where dogs were likely to search.

A West Yorkshire Police spokesperson said: "Although we have not received any direct reports in relation to these incidents we are aware of posts on social media and the local neighbourhood policing team will be paying attention to the area on their regular patrols."