A dog has died after being taken for a lunch time walk by a dog walker. The cause of death is attributed to blistering midday sun that led to organ failure and heatstroke.

Speedy started by panting heavily during the walk as the body temperature soared to 109F (43C). The pet later that night suffered a seizure and was rushed to Medivet in Hampstead London. He was sprayed with cool water and put on a drip in an attempt to prevent his organs from failing.

With deteriorating condition, he was transferred to the Royal Veterinary College an emergency animal hospital where he later died from kidney failure and severe heatstroke. Despite receiving critical care overnight, Speedy the greyhound could not be saved.

The horrified owner however said she was not to blame. She told a Metro.co.uk: ‘Speedy was in the care of a dog walker whilst I am abroad.

‘Speedy should not have been taken out in these high temperatures as he is particularly sensitive to heat.

‘He was loaded into a van with a number of other dogs whose body temperatures must have made him suffer terribly.’

Veterinary Surgeon and Medivet Hamsptead Branch Partner Sarah Furminger said: ‘Unfortunately, owners do not always realise that their dogs are suffering from heatstroke as one of the main symptoms is heavy panting.

‘If owners do suspect heatstroke, it is critical that they act quickly and seek advice immediately to give their pets the best chance of survival.’

Lead Veterinary Surgeon at Medivet 24 Hour Hendon Jerry Dunne added: ‘While any dog can suffer heatstroke, breeds with thick fur, short noses and those with pre-existing medical conditions, such as obesity, are at a higher risk.

‘Similarly, extremely active or working dogs are more susceptible and should be watched carefully during this period of unusually hot weather.’

Avoid exposing your pets to scorching heat wave during hot days or leaving them locked in the cars. Our detailed article on how to keep your dog cool when hot outside during summer will give you further details on signs of heat stroke in dogs and what to do.