This is the incredible moment a pair of hero pet dogs barked for help as a worker suffered a seizure.

Labrador retriever puppies Pfizer and Extra were playing in the garage when the house owner's gardener felt dizzy and collapsed in Prachuap Kiri Khan province, Thailand on November 1.

Upon seeing the man shaking on the ground, the yellow and chocolate due made noise to alert their owner about the sick man.

CCTV footage shows the two dogs barking loudly while looking at the worker. They continued making noise until owner Silaphan Pansorn heard the noise and arrived a couple of minutes later.

Thanks to the smart pet dogs, they were able to quickly call an ambulance which potentially saved the worker's life. He recovered in the hospital and has been released.

Silaphan said: ‘Our worker was cleaning up behind the house when it happened. He was alone with only the two dogs nearby.

‘I was inside the house that time, and normally my energetic dogs would be loud and playful, but I felt something was wrong when they hadn't stopped for a while.'

Silaphan went to the back of the house and found her employee on the floor, struggling to move.

She called rescuers who brought an ambulance to pick him up. The proud pet owner said medics were able to save the worker because of the two dogs.

She said: ‘I am so proud of my dogs because they helped save a life. Who knows what could have happened to our worker if they hadn't called my attention? I am grateful he is fine now.'

The house owner added she gave the hero pooches some extra treats as a reward.

She said: ‘They deserve all the good dog treats in the world and more.'

The worker is still recovering at the hospital but is now in stable condition.