At least 19 people were killed and many others are feared dead in a fire at a Cambodian casino, officials said, with a rescuer describing how victims hurled themselves from a ledge in a desperate bid to escape the flames.The blaze at the Grand Diamond City hotel-casino in Poipet in Cambodia's northwest, within view of the Thai border, broke out late on Wednesday night.A volunteer with Thai rescue group Ruamkatanyu Foundation, who wished to remain anonymous, said his team arrived at around 2 am (0730 GMT) and saw people jump from the building.Video showed the building consumed by flames, with firefighters struggling to contain the blaze and rescuers attempting to pluck people from a burning ledge.Naphat Klonkliang, an officer with the foundation, told AFP they had retrieved two bodies."