AN inquest has been ordered in Fiji into the death of Hong Kong businessman Tong Kai-on whose body was found floating in a river with a rope tied round his neck. The probe comes after the part-time police officer charged with killing Tong threw himself into the same river when he was taken to the scene by investigating detectives. The bizarre series of events began in March when Tong, 53, was found two days after being reported missing. His decomposed body was spotted with a rope round his neck floating in the Navua River. Fijian authorities said Tong was travelling in a car with special constable Prakash Vinod Chand, 21, when a fight erupted and Tong was hit on the head. He was then weighted down with rocks, tied round the neck with a rope and thrown into the river. The relationship between Tong, who was involved in an import-export business, and the special constable could not be explained by investigating police. However, sources in Fiji confirmed that two days before Tong's body was found, police officers were assigned to guard his house in the exclusive Namadi Heights area against burglars. A police spokesman in the capital, Suva, said the final investigation report was completed this month and handed to the Coroner's Office for an inquest. He said the special constable had been a part-time officer and his body was found in the river three days after he flung himself over a bridge when he was asked to reconstruct the murder of Tong. He refused to reveal the motive for the murder but it is known that the two men were acquainted with each other. It is believed police found almost US$3 million (HK$23 million) in Tong's local bank accounts and that Chand had about US$20,000 - far more than the average Fijian worker could have saved. The Tong family gained a residence permit for Fiji in May 1982. Asian families wishing to migrate to Fiji must pay US$30,000 to the Government and invest at least US$100,000 when they get there. It is understood that Chand confessed to murdering Tong before leaping into the river. It was not clear whether he intended to kill himself but it is known that he was a poor swimmer and died by drowning.