Dog walkers are being warned about an 18ft python on the loose that can crush pets to death.
Four of the exotic non-native snakes have been captured in the Twigmoor and Cleatham areas in North Lincolnshire.
The reticulated pythons - the world's longest snake - are thought to have been dumped in the woods by their owner.
Cops at Humberside Police have issued a chilling warning to dog owners that the non-venomous snake 'kill their prey by biting it and then coiling around it to literally squeeze the life out of it'.
They are also urging owners to keep pets on leads in the areas where the pythons were found.
