Two Russian warships were intercepted in the English Channel by the Royal Navy, the Ministry of Defence (MoD) has said,
BBC reports.
In the latest incident involving Russia's ships entering waters around the UK, HMS Severn headed off the RFN Stoikiy, a corvette and Yelnya, a tanker, as they sailed west through the Dover Strait into the English Channel in the past fortnight.
Last week, it emerged that the Russian spy ship Yantar was spotted off the coast of Scotland and it used lasers to disrupt RAF pilots tracking its movements.
Defence Secretary John Healey branded the Yantar's move "deeply dangerous" and warned Russia and its president Vladimir Putin: "We see you. We know what you're doing. We are ready."
Healey said last week that there had been a 30% increase in Russian vessels threatening UK waters in the past two years.
The MoD said after intercepting the Stoikiy and the Yelnya, the HMS Severn later handed over monitoring duties to a Nato ally off the coast of Brittany, north west France.
It said the UK ship "continued to observe from a distance and remained ready to respond to any unexpected activity".