A seven-year-old boy threw himself to his death from a block of flats in Yuen Long yesterday after learning he failed a Chinese dictation exam at school. His mother, who was at work, returned to find a suicide note from her youngest son, Ng Dik-wai, on the living room table. It read: 'I am sorry I have failed in my Chinese dictation in school.' She became worried when she saw police making inquiries in Kam Ping House, Long Ping Estate. Neighbours then told her a boy had jumped. Police took her to Tuen Mun Hospital, where she identified her son's body. He was a Primary Three pupil at a nearby school. Dik-wai's teacher said he was average academically. He sat four dictation tests this term, achieving marks of 75, 50 and 95 in the first three, but only 30 in the latest. A woman returning to her flat at 4.30pm saw the boy lying unconscious on the ground. No identification was found on him and he was certified dead on arrival at hospital. The boy's father, a taxi driver, and his mother, who works in a restaurant, were at work, while his elder brother and sister were out when the tragedy occurred. Police said foul play was not suspected but inquiries were continuing.