Russian Admiral Grigorovich-class frigate reportedy on fire near Snake Island.

According to information published by Liveuamap on May 6, 2022, a Russian Navy's Admiral Grigorovich-class frigate was reportedly on fire near the Ukrainian Snake Island.
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The Snake Island near Ukrainian and Romanian territory in the Black Sea (Picture source: Liveuamap)

The Admiral Grigorovich class frigate could be Admiral Essen that is currently positioned in the Black Sea. Snake Island, also known as Serpent Island or Zmiinyi Island, is an island belonging to Ukraine located in the Black Sea, near the Danube Delta, with an important role in delimiting Ukrainian territorial waters.

On April 5, 2022, the Ukrainian armed forces had claimed to have hit the Russian Admiral Grigorovich-class frigate (project 11356R/М), Admiral Essen, with a Ukrainian Neptune missile, which turned out to be false.

The Admiral Grigorovich-Class frigates have been designed to conduct anti-surface warfare, anti-submarine warfare, and anti-air warfare missions. The Admiral Grigorovich Class incorporates a stealthy hull design developed by the Severnoye Design Bureau. The hull and superstructures were designed to have low radar, acoustic and infrared signatures.

The class of frigates has a length of 124.8 m (409 ft 5 in), a beam of 15.2 m (49 ft 10 in), and a draught of 4.2 m (13 ft 9 in). She can reach a top speed of 30 knots (56 km/h; 35 mph).

The Admiral Grigorovich-class frigate is armed with one 100 mm A-190 Arsenal naval gun, UKSK VLS cells able to launch Kalibr, Oniks, or Zircon anti-ship cruise missiles, 24 3S90M VLS cells for 9M317M surface-to-air-missiles, two AK-630 CIWS, 8 Igla-S or Verba air defense missile systems, two double 533 mm torpedo tubes and one RBU-6000 rocket launcher.

On April 13, 2022, the Russian Project 1164 Atlant (Slava class) cruiser Moskva was reportedly hit by Ukrainian Neptune missiles. We cannot determine at this time whether it was hit by a missile.