Russia-Ukraine war live: Ukraine claims to have killed commander of Russia’s Black Sea fleet

Ukraine says 34 officers were killed including Black Sea fleet admiral Viktor Sokolov in its missile strike on Sevastapol last week

• What we know on day 579 of the invasion

An air alert has been declared in Mykolaiv.

Tass reports that the Russian ministry of defence has reported that it destroyed Ukrainian drones that were over the north-western part of the Black Sea near occupied Crimea, as well as over the Kursk and Bryansk regions. It claims to have shot down eight aircraft-type drones in total.