China's foreign ministry says that it will be investigating claims that its hackers penetrated into government computer systems in Berlin.

The attacks were made using spy software which had been built in China.

In a statement, the Foreign ministry said that the government has always opposed and prohibited any criminal activity that breaks down computer networks, including hacker attacks. He said that China has clear rules and regulations on this.

German weekly Der Spiegel reported the programmes could be traced back to hackers from the Chinese People's Liberation Army.

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