According to the Defense Ministry of the Russian Federation, one of its ships fired warning shots at a British Royal Navy ship that had entered Russian territorial seas.
The accusation, which the British Ministry of Defense has rejected, came on the same day that Russian President Vladimir Putin blasted NATO's military buildup along his country's borders, saying it could lead to "unpredictable situations."
According to Russian state news agency Tass, HMS Defender, which is operating in the northern portion of the Black Waters, "passed the state border of the Russian Federation and moved 3 kilometers (1.86 miles) into the territorial sea near Cape Fiolent" just before midday on Wednesday.
Along the path of the British warship, which "left the territorial waters of the Russian Federation at 12.23 p.m.," a Russian border guard patrol ship "conducted warning fire" and a Su-24M aircraft "carried out preventative bombing."