A fifth monster python has been found in the British countryside by terrified locals, prompting a chilling warning by police.

Four of the snakes were found on June 13 and 14, and a fifth was spotted by a shocked motorist last Saturday in the Twigmoor and Cleatham areas of north Lincolnshire.

One of the snakes, belonging the world's longest species of snake, was discovered by Rob Stokes, 45, who runs the reptile centre, The RSG Reptiles, and his son George, 15, in some bushes near his van after being called in by police to help search for them.

This has sparked a warning from Humberside Police to dog walkers to keep their pets on leads.

The exotic snakes, which can weigh up to 75kg and normally feast on monkeys, pigs, and deer in the wild, are believed to have been callously abandoned by a pet owner who no longer wanted them.