Six people were hurt, one of them seriously, when a large Carnival float caught fire at a parade on Sunday in Kehl in south-western Germany, police said. One person suffered such severe burn injuries that he had to be taken to hospital in a rescue helicopter. Several other people were injured, police said. According to the city of Kehl, the fire broke out in the interior of the float, which looked like a ship. Police said the float was badly damaged. To save themselves from the flames, several people jumped off the float and onto the street. Police said the truck with the float trailer was bad…