Not FX related but an interesting snippet reported by US media (NBC link here).
Ukrainian forces asked the Americans about a ship sailing in the Black Sea south of Odesa, U.S. officials told NBC News. The U.S. identified it as the Moskva, officials said, and helped confirm its location, after which the Ukrainians targeted the ship.
The U.S. did not know in advance that Ukraine was going to target the Moskva, officials said, and was not involved in the decision to strike. Maritime intelligence is shared with Ukraine to help it defend against attack from Russian ships, officials added.