Russia probably have conducted an amphibious landing in South East Ukraine

According to information published by the UK Ministry of Defense on February 25, 2022, the Russian Navy would have conducted an amphibious landing in Southern Ukraine between Melitopol and Mariupol.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Russian Ropucha-class landing ship Kaliningrad (Picture source: José María Casanova Colorado)

On February 11, 2022, the Russian Navy's detachment of six landing ships, including the Ropucha-class landing ships Korolev, Minsk, Kaliningrad, Olenegorsk Miner, Ivan Green-class landing ship Pyotr Morgunov, Georgy Pobedonosets, and Olenegorsk Miner made calling at the base of the Black Sea Fleet, the city of Sevastopol, Crimea.

The Ropucha class, Soviet designation Project 775, is a class of landing ships (large landing ship in Soviet classification) built in Poland for the Soviet Navy. The ships were built in Poland in the Stocznia Północna shipyards in Gdańsk. Designed for beach landings, they can carry a 450-ton cargo.

The ships have both bow- and stern-doors for loading and unloading vehicles, and the 630 square metres (6,800 sq ft) of vehicle deck stretches the length of the hull. Up to 25 armored personnel carriers can be embarked.

The Ivan Gren class, Russian designation Project 11711, is a class of landing ships that is being built for the Russian Navy.

The vessels of the class have a displacement of 5,000–6,000 tons and are able to carry up to 13 main battle tanks or 36 armored personnel carriers and 300 marines.