'Kiev sets fire to Russian naval vessel in Kaliningrad' - Europe.com. The vessel suffered significant damage following the fire in the operation carried out yesterday.
"It was a special operation by Gur. The ship is not feeling well now," the source told the Kyiv Post. According to military intelligence, in the fire "the means of communication and automation" of the ship "were completely destroyed" The Serpukhov is a Russian ship of project 21631 "Buyan-m" and is equipped with a vertical launch system for 8 Onyx, Zircon and Kalibr cruise missiles.