The older sister of a 15-year-old Vietnamese boy fears he froze to death while being trafficked to Britain to be reunited with his parents. Teenager Nguyen Huy Hung would be the youngest victim of the tragedy that claimed the lives of 39 people found dead in the back of a freezing trailer in Essex last Wednesday. His family has claimed the 15-year-old had longed to be with his father Nguyen Huy Tung and his mother Nyguen Thi Huyen and had spent the past two months travelling to the UK to see them. While his death has not been confirmed by police in Britain, Vietnamese police from the country’s capital Hanoi are supporting his relatives home in the remote village of Cuong Gian. His elder sister, 16, who lives in Korea, told friends of Facebook: ‘My brother left France for the UK and we have not been able to contact him since then’. An uncle has also travelled from the south of the country after the boy’s parents told authorities they lost contact with their son on October 22 – the day of the tragedy. It is thought the parents – who are believed to be in the UK illegally -…