The Ukrainian navy has accused Russia of firing at some of its ships and injured two of its crew near a key shipping route off Crimea.
The incident began earlier on Sunday when a Russian coast guard vessel rammed a Ukrainian navy tugboat in the Kerch Strait.
The tugboat was travelling with two Ukrainian navy artillery boats from Odessa on the Black Sea to Mariupol in the Sea of Azov.
The conflict took place in the Kerch Strait (pictured) – where Russia said Ukrainian ships made ‘unauthorised crossings’
The incident began earlier on Sunday when the Ukrainian navy claimed a Russian coast guard vessel rammed a Ukrainian navy tugboat (pictured)
The Kerch Strait is the only passage into the Sea of Azov beyond it. The strait is crossed by the recently completed Kerch Bridge, connecting Crimea to Russia.
‘Russian coast guard vessels … carried out openly aggressive actions against Ukrainian navy ships’ during the transit, the Ukrainian navy statement said.
It said a Russian coast guard ship damaged the tugboat’s engine, hull, side railing and a lifeboat.
The statement added Russia was informed in advance about the planned transit.
‘Intercepted video’ said to show the Ukrainian tugboat being rammed by the Russia border service ship has been shared by Ukraine’s Interior Minister.
Arsen Avakov described it as a an act of aggression that ‘will be used as proof in international court’.
Russia says three Ukrainian Navy vessels (pictured) illegally crossed the Russian border and intruded into Russia’s territorial waters
One Ukrainian navy tugboat was travelling with two artillery boats from Odessa on the Black Sea to Mariupol in the Sea of Azov
Russia claims it was forced to cut off the Kerch Strait after three Ukrainian navy ships made an ‘unauthorised crossing through Russian territorial waters’.
It follows months of growing tensions between Ukraine and Russia, which annexed Crimea from Ukraine in 2014 and has steadily worked to increase its zone of control around the peninsula.
Transit under the bridge has been blocked by a tanker ship and dozens of cargo ships awaiting passage are stuck.
A 2003 treaty designated the Kerch Strait and Sea of Azov (shown) as shared territorial waters, but Russia has been asserting greater control over the passage since 2015
Transit under the Kerch Bridge (pictured, in a file image) has been blocked by a tanker ship and dozens of cargo ships awaiting passage are stuck
Russia’s Federal Security Service, known as the FSB, told Russian news agencies the Ukrainian ships held their course and violated Russian territorial waters, which were temporarily closed.
The FSB accused the Ukrainian navy of staging a provocation against Russia.
‘Their goal is clear,’ an FSB statement said, ‘to create a conflict situation in the region’.
The statement did not mention ramming a Ukrainian tugboat.
Though a 2003 treaty designates the Kerch Strait and Sea of Azov as shared territorial waters, Russia has been asserting greater control over the passage since 2015.
The Ukrainian Foreign Ministry in a statement said Russia’s actions were a violation of the UN Charter.