This is the tense moment a police officer jumps into a frozen lake to rescue a puppy that had fallen through the ice.

Officer Jonathan Smith, 30, was called to Bond Lake near Lewiston, New York, USA after receiving reports of a Labrador that had fallen in about 50 yards from the shore.

In a heart-in-mouth moment caught on bodycam footage, the brave cop ripped off his equipment and leapt dashed out onto the ice.

The owner of the dog revealed that they had been walking their 10-month-old pup Kona off her lead around the lake at about midday on Wednesday (5/1).

When he got close enough to her, Officer Smith grabbed the 75lb pooch and pulled her from the water so she was able to run back over the ice to her owner.

In the email, the owner said: "Kona and I and everybody that loves her are extremely grateful for his selflessness and courage.

"His professionalism and bravery should be applauded.

"I have witnessed countless acts of selfless heroism, Officer Jon Smith’s actions rank high in my book."