The statement from Sa Kaeo province, where Thai casualties have been treated, made no mention of the victims' nationalities. Poipet's casinos are a draw for mainly Thai gamblers.
Reuters reports the fire broke out about midnight on Wednesday (6am today NZST) at the Grand Diamond City Casino in the town of Poipet, according to Cambodian authorities.
Police said the fire was under control and hundreds of personnel from the military, police and rescue teams had been deployed.
