Firefighters in the US got a big surprise when they had to rescue a horse from a backyard pool in Arizona, USA.

It's unclear how the horse got in the pool, but we can report that there was a happy ending.

Fire crews secured the horse until a vet could arrive to sedate it to keep it calm. That allowed the crews to attach straps to the horse and pull it out of the pool.

The sodden beast was then dragged clear and was soon snoring loudly as it slept off its unusual ordeal.

The animal is reported to have made a complete recovery.