BEIJING (Reuters) - Chinese Premier Li Keqiang said on Thursday that national security legislation, which China's parliament voted overwhelmingly to impose on Hong Kong, would benefit the territory's long-term stability and prosperity.

Democracy activists in the city and Western countries fear the legislation could endanger Hong Kong's special autonomy and freedoms under the "one country, two systems" model in place since its 1997 handover from British to Chinese rule.

(Reporting by Tony Munroe; Editing by Gareth Jones)