China poses a daily threat to Britain’s security, the head of the country's domestic intelligence agency said Thursday, remarks that step up pressure on authorities to explain why the prosecution of two men charged with spying for Beijing collapsed just before they were due to stand trial.

The three statements, written by deputy national security adviser Matthew Collins, are clear that the Chinese are carrying out spying operations against the UK. In the documents, he said China was carrying out "large scale espionage" against the UK and was "the biggest state-based threat to the country's economic security".

High-altitude white balloons have been sighted drifting over states including Alabama, Colorado and Arizona, prompting fears of foreign surveillance. Some have later been traced to U.S. military or aerospace firms.

The collapse of a spying case ahead of the trial is not just an embarrassment for Keir Starmer, it is a reminder that his government must strike a more effective balance in its approach to Beijing – b

MI5 director-general Sir Ken McCallum said the Chinese government poses a threat "every day" as they try to steal state secrets.

China is both an important economic partner and a systemic rival to the UK. This poses a unique challenge, which demands a long-term response.

The British government has come under scrutiny after charges against two men accused of spying for Beijing were dropped. Here’s what to know.

The Trump administration could redirect the nation’s spy satellites to watch over drug cartels as it focuses on defending the Western Hemisphere.

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Mark Wahlberg has struck a deal with Pras Michél to make a feature documentary that chronicles his life and conviction related to the 1MDB scandal.

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Christopher Cash and Christopher Berry were accused of collecting insider information about UK politics and government policy, and passing it to a Chinese intelligence agent, who then forwarded it to Cai Qi,