Russian Authorities said on Wednesday that shots and bombs were fired from Russia in the path of UK warships to chase it out of waters that Moscow claims in the Black Sea off the coast of the Crimea peninsula.

The UK, however, rejected Russia’s account of the incident, saying it believed any shots fired were a pre-announced Russian “gunnery exercise,” and that no bombs had been dropped. 

But, UK officials confirmed that the UK destroyer, HMS Defender, had sailed through what it described as waters belonging to Ukraine.

The ship was “conducting an innocent passage through Ukrainian territorial waters in accordance with international law,” Britain’s Ministry of Defense said in a statement.

Prime Minister Boris Johnson’s spokesman said, “It’s incorrect to say either that it was fired upon or that the ship was in Russian waters.”