A heroic dog lover came to the rescue when his family dog was drowning in a freezing lake.

Jonas Lundh, 26, was out moose hunting in Költräsk lake, Sweden on October 24, when his father's dog Rocky found itself in deep water.

The four-year-old mongrel was helping Lundh to track down the enormous animals when he had given chase to one of them across a partially frozen lake.

Although the moose made it to the other side, Rocky wasn't as fortunate and began to struggle in the icy-cold water.

Jonas Lundh, 26, saved his father's beloved dog Rocky from drowning in Költräsk lake, Sweden on October 26

While hunting with Lundh and his father, Rocky chased a moose into a partially frozen lake. The moose made it across to a nearby island, but Rocky struggled in the water

Lundh, from Boden in Sweden, has his dog tagged so that he can keep track of its movements whilst on a hunt.

He feared the worst when he saw the canine entering the water on his GPS.

After sprinting through the forest in panic, he arrived at the edge of the lake and saw Rocky floundering among sheets of ice.

Lundh said: 'I heard Rocky make a strange bark, and I looked again at my GPS, and saw they were heading out into the water.

'That's when I knew I had to act really quickly.

'So I ran closer to the water, looked around me, and I saw the moose and dog out in the water.

Lundh was watching where Rocky was on his GPS through a tracking device, and when he saw Rocky had gone into the water, he ran after the dog

Lundh quickly jumped into the water when he saw that Rocky was drowning and carried him to the nearby island

The pair waded through icy-cold water and Lundh had to move sheets of ice out of the way so they could make it to shore

'The moose was moving and after a while it was up on the island there, the dog was stuck in the ice, that was when I panicked.

'The only thing I had right there in my mind was that I couldn't watch him drown.

'It was so extremely cold that I could barely breathe, and my heart raced very fast. So I tried to focus on my breathing and head out to Rocky as soon as possible.'

Brave Lundh filmed the incredible rescue with a GoPro camera, which shows him swimming through the freezing waters in a state of panic.

After scooping his beloved pet up in his arms, he was able to carry him to an island in the middle of the lake.

Lundh continued: 'The swim out to Rocky felt very long, but I just tried to stay focussed on breathing during the way.

Once on shore, Lundh shouted for his father to help, but it took him about half an hour to reach his son and Rocky 

So Lundh and Rocky made their way back through the water, Rocky swimming next to Lundh as he waded through the lake

'When I got to him and grabbed him by the neck and lifted him up it was an amazing feeling when I knew he was going to survive.

'Then we walked up to the little island and I smashed my way though the ice so both me and the dog could make it up there.

'And then we started screaming for help, because I knew my father was not far away.

'But it took a while, so maybe 30 minutes on the island (in the) ice cold wasn't that funny, but we made it.'

After screaming out for help, Lundh waded back though the water and returned to the main land.

Despite his traumatic ordeal, Rocky, a cross between a Norwegian Elkhound and West Siberian Laika, swam back by his side.

Lundh said he will be hunting with Rocky again in future.

Lundh and Rocky, who is a cross between a Norwegian Elkhound and West Siberian Laika, eventually made it to safety and met up with Lundh's father.

Lundh said that despite Rocky's near-death experience in the freezing water, he will be hunting with the dog again in future