The head of MI5 says Britain is facing a staggering rise in attempts at assassination, sabotage and other crimes backed by ...

An assertion by the head of the UK's MI5 security service that Russia's GRU military intelligence agency is bent on causing ...

Russian officials just piped up over MI5′s recent warning Moscow agents are looking to cause “mayhem” on British streets and ...

ISIS and al Qaeda present a “resurgent” threat to the United Kingdom, the head of the country’s domestic security service ...

Russia's intelligence agency has been on a mission to generate "sustained mayhem on British and European streets", the head ...

Ken McCallum says Russian intelligence agencies are also on a ‘sustained mission to generate mayhem on British and European ...

The UK has seen deadly terrorist attacks on its streets despite the efforts of British spies to target and locate individuals ...

MI5 director-general Ken McCallum says the UK faces an increased threat from "Putin's henchmen" and "plot after plot" from ...

MI5's Ken McCallum warns of Russian chaos, Iran plots, rising terror threats, and increasing youth radicalisation in the UK.

Video: MI5 Director General warns Russian spies are 'on a sustained mission to generate mayhem' This year MI5 tracked down ...

Russian spies are “on a sustained mission to generate mayhem in British streets”, the head of MI5 has said. Ken McCallum said ...