A former MI6 officer who spent time in prison for breaking the Official Secrets Act has launched a blog to air his views. 

Richard Tomlinson launched his Tomlinson v MI6 blog as part of a long-running campaign that began when he was sacked by the British intelligence service. 

Tomlinson was an operational officer to the Soviet Union, but was sacked after four years with MI6 following a posting to Bosnia in 1995.

"MI6 have only themselves to blame for the creation of this blog," Tomlinson said on the site.

"I have written privately many, many times trying to establish a dialogue with them to find an acceptable solution to this dispute. Never once have they even bothered to reply."

Tomlinson famously claimed that Princess Diana's death was similar to a plan MI6 had to kill Slobodan Milošević, and that her driver Henri Paul was a paid MI6 informant.

His blog has already shown the location of Fort Monckton, near Portsmouth, on Google Earth, where new MI6 recruits undertake their six-month training course.