in contrast, the black sea fleet was bringing in reinforcements through luftwaffe attacks. on 12 june the cruiser "molotov" and destroyer "bditel'nyy" brought in 2,314 soldiers, 190 tons of ammunition and 28 artillery pieces. the luftwaffe turned its attentions to these convoys. on 13 june it sank the transports "gruzyia", "tsch-27", patrol boat "ska-092", motor boat "sp-40", five barges and a floating crane. on 15 june another 3,400 soldiers, 442 tons of ammunition, 30 tons of fuel and 12 tons of provisions reinforced the soviet positions.