during the night of 27 april, a convoy escorted by the romanian gunboat "sublocotenent ghiculescu", the german submarine hunter "uj-115", one r-boat, two kfk naval trawlers and 19 mfps (including the romanian "pta-404" and "pta-406") engaged the soviet g-5-class motor torpedo boats "tka-332", "tka-343" and "tka-344", after the three attacked and damaged the german submarine hunter "uj-104". "ghiculescu" opened fire with tracer rounds, enabling the entire escort group to locate the two soviet mtbs and open fire. "tka-332" was hit and sunk.