A 16-year-old worker, Yeung Kin-bong, fell to his death in North Point yesterday while helping two colleagues erect scaffolding. The Labour Department said it would investigate whether the dead youth was legally employed and if he had been provided with adequate safety equipment. It is illegal in Hong Kong for people under 18 to work on construction sites unless they are apprentices. Yeung fell to his death while sitting outside the kitchen window of a 20th-floor flat in Braemar Hill Mansion, Braemar Hill Road, shortly before 1.30pm. He had been passing material to colleagues who were assembling the scaffolding. Yeung, whose undamaged safety belt was found attached to the window's grille, was pronounced dead on arrival at Tang Shiu Kin Hospital. The youth, who joined the scaffolding company a year ago, lived with his grandmother and younger sister in Shau Kei Wan.