Units of Ukraine's Unmanned Systems Forces struck a Russian Svetlyachok-class border patrol ship in temporarily occupied Crimea on the night of 3-4 June.

Ukraine has struck the Ilsky oil refinery in Russia and a Russian vessel off the coast of Crimea; a fire is reported at the refinery.

Ukraine's Defense Forces struck the Ilsky oil refinery, a Pantsir-S1 air defense system, and a Russian vessel in temporarily occupied Crimea. — Ukrinform.