A dog was dramatically rescued from a hot car by a good Samaritan after shoppers saw it panting heavily inside the vehicle.

Video taken at a Fforestfach Tesco car park in Swansea, Wales, shows the man smashing the car window before breaking in to save the dog on a sunny day over the weekend.

The man jumps into the car through before a concerned woman tries to give the pooch some water.

Shopper Zoey Thornton, who filmed the moment, claimed the dog had been inside the boiling car on its own for "at least 30 minutes".

The 29-year-old said that she and her mother were putting their shopping bags into the car when they noticed a woman looking concerned.

A man had to break the car windows after noticing a dog trapped in a hot car
A man had to break the car windows after noticing a dog trapped in a hot car

They alerted Tesco, Home Bargains and Poundland to send out tannoy announcements to try and find the owners before the window was smashed.

She told Wales Online : "We went over to see if everything was alright and it turns out that the dog was inside, it was really hot.

"The window was open a little bit but we were there for at least half an hour before any action was taken.

"It's long enough for a dog to overheat in a car."

A female shopper gave the dog some water after it was rescued
A female shopper gave the dog some water after it was rescued

They also alerted South Wales Police while waiting for the car owner to come out to the car park.

Zoey was told by other witnesses that they had been waiting for at least 10 minutes and the dog was "panting quite heavy".

"We smashed the window just before the police had arrived as it was starting to get too long," she said.

"We just thought that was the next option as the car was getting hotter.

"I've got dogs myself and I wouldn't leave them in the car. I just want people to be aware not to leave their dogs in the car in hot weather."

Weather forecaster, Accuweather, recorded a sizzling 25C in Swansea on May 31.

A spokeswoman for South Wales Police said: "We received reports about a dog in a car at Fforestfach at about 2.30pm on May 31.

"Officers attended and the dog had already been released from the car. The owner was located and given advice.

"We would like to remind people that dogs can die in hot cars. If you see a dog in distress you can call us on 101 or in an emergency 999 – more information is available."