A Hong Kong fisherman has been attacked and thrown overboard while fishing in the South China Sea, a police spokesman said. Sin Chee-wah, 45, was forcibly taken on board a mainland fishing boat and beaten up for purportedly damaging the mainlanders' fishing nets last Thursday. His attackers then threw him in the sea, where he was rescued by a Hong Kong fishing boat. SAR police later took him to hospital for treatment. Mainland authorities have been informed.