Ukraine ‘sinks another Russian warship’ in the Black Sea using high-tech drones

A Russian ship named Caesar Kunikov passes through the Dardanelles strait in Turkey en route to the Mediterranean Sea in 2015 (Burak Gezen/AP)

Ukraine has claimed it has sunk another Russian warship in the Black Sea using high-tech drones as Kyiv’s forces continue to take aim at targets deep behind the war’s front line.

Russian authorities did not confirm the claim.