A crack in the ice on the frozen lake of St Moritz has proved fatal following an accident at the annual White Turf International Horse Races.

On Sunday,a leading horse stumbled, causing two others to fall as well – one of whom was so badly hurt that he had to be put down on site. His jockey was airlifted and placed in intensive care; the man’s injuries are not life-threatening. White Turfexternal link officials cancelled the remaining races in the interest of safety.