A doorbell camera has captured the frightening moment a man was bitten by a snake.

Oklahoma man Jerel Heywood was visiting his mate on Sunday when the attack happened.

The vision shows Mr Heywood walking up to the house and opening the screen door.

A nanosecond later, a snake – which was wrapped around the porch light – jumps out and bites Mr Heywood’s head.

It’s understood that the snake was non-venomous and other than taking a course of antibiotics, Mr Heywood is OK.

The snake wasn’t so lucky.

A neighbour, who heard the commotion in the moments after the incident, came over with a hammer and, as CNN reports, pummelled the snake to death.

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