BEIJING, Dec. 10 (Xinhua) -- China is strongly dissatisfied with and firmly opposes Britain's practice of political manipulation under the guise of cyber security, and has lodged stern representations in Beijing and London, said Chinese foreign ministry spokesperson Guo Jiakun on Wednesday.

Guo made the remarks at a daily news briefing when commenting on the report that the British government on Tuesday announced sanctions against two Chinese companies, claiming that the relevant companies had launched cyber attacks against Britain and its allies and that their actions were related to the Chinese government. ■