Mostly in the Gulf Stream and the Indian and Pacific oceans and... Britain?

Our barmy weather has triggered a new menace to British waters - a plague of killer jelly fish!

According to reports, Marine experts are warning that the deadly creature could be heading for our shores. Schools of this species have struck Cornwall and Dorset before and now experts warn that the drastically altered wind and tidal conditions have left the seas unusually warm which could bring the deadly species closer to Britain.

The Portuguese Man-o-War is mean and huge with stinging tentacles that would feel like a whip of fire if they stung you. Their poison can stop a man's heart after only a few moments.