Police are still investigating claims that Penang Chief Minister Lim Guan Eng's son had sexually assaulted a schoolmate, almost six years since the allegations circulated on pro-Umno blogs.

Police received six complaints alleging that the then 16-year-old boy had committed the crime, and that money was paid to ensure the matter was not circulated online.

Lim had vehemently denied the allegations while the headmaster of the school the boy attended said no such incident occurred there.