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

LONDON -- Britain is facing a “staggering rise” in assassination attempts on U.K. soil by Russia and Iran, as the hostile ...

In a speech delivered from the Counter Terrorism Operations Centre (CTOC) on Tuesday in London, MI5 Director General Ken ...

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

Britain is facing a “staggering rise” in assassination attempts on its soil by Russia and Iran, as the hostile states recruit ...

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

Ken McCallum said the number of state-threat investigations undertaken by MI5 has risen by 48 percent in the past year.

Britain's domestic spy chief Ken McCallum warned of the dangers posed by Russia and Iran as well as growing concern about Al ...

James Callis told UPI the Claude Whelan, the MI-5 director he portrays on "Slow Horses," means well, but is in over his head in the spy agency's top position.

LONDON — Britain is facing a “staggering rise” in attempts at assassination, sabotage and other crimes on U.K. soil by Russia ...

Director-general Ken McCallum was speaking at the Counter Terrorism Operations Centre in west London on Tuesday.