MPs and members of the House of Lords have been warned by MI5 that they face a significant risk of espionage from the Chinese state.

Commons Speaker Sir Lindsay Hoyle and his counterpart in the House of Lords, Lord McFall, have circulated a new “espionage alert” issued by the security services.

Writing to MPs, Sir Lindsay said Chinese state actors were “relentless” in trying to “interfere with our processes and influence activity at Parliament”.

He said the Chinese Ministry of State Security (MSS) was “actively reaching out to individuals in our community”, and that they wanted to “collect information and lay the groundwork for long-term relationships, using professional networking sites, recruitment agents and consultants acting on their behalf”.

The alert from MI5 says “false personas” approach targets to “work as freelance consultants authoring geopolitical reports”.

It specifically identifies two LinkedIn profiles which it says are used on behalf of the MSS.

The alert says they act as “civilian recruitment head-hunters”, recruiting individuals working in British politics for the MSS, and solicit “non-public and insider insights”.

Other elements of espionage described in the MI5 alert include all-expenses paid trips to China, and payment for information through cash or cryptocurrency.

Targets are said to include “Parliament staff, economists, think tank employees, geo-political consultants and those working alongside [the government] including MPs and members of the House of Lords”.

Security Minister Dan Jarvis will address the House of Commons later on measures the government is taking to combat Chinese espionage.