Britain's foreign spy chief accused Russia on Friday of waging a "staggeringly reckless campaign" of sabotage in Europe while also stepping up its nuclear sabre-rattling to scare other countries off from backing Ukraine.

Britain's foreign intelligence service chief says Russia's 'staggeringly reckless' sabotage campaign against Ukraine's allies risks escalating war.

Russia is conducting a "staggeringly reckless campaign" of sabotage in Europe, as well as increasing nuclear sabre-rattling to deter other countries from helping Ukraine. Source: Richard Moore, Chief of the UK's Secret Intelligence Service (MI6),

Russia's acts of sabotage against Western targets may eventually prompt NATO to consider invoking the alliance's Article 5 mutual defence clause, the head of Germany's foreign intelligence service said on Wednesday.

The head of MI6 has said a “staggeringly reckless campaign of Russian sabotage” has been uncovered in Europe. Speaking at the British embassy in Paris, Sir Richard Moore said Russia was trying to “sow fear about the consequences of aiding Ukraine and challenge Western resolve in so doing”.

The head of Britain's foreign intelligence service said Friday that Russia is conducting a "staggeringly reckless" sabotage campaign against Ukraine's Western allies, and that his spies are working to stop the consequences from spiraling out of control.

MI6 chief Richard Moore has claimed his spies are battling to stop the consequences of Russian sabotage spiralling out of control.