18 Lancasters of No 617 Squadron flew to Swinemünde to attack the pocket battleship Lützow. The force flew through intense flak; 1 Lancaster was shot down (No 617 Squadron's last loss of the war) and all but 2 aircraft were damaged. 15 aircraft managed to bomb the target with Tallboys or with 1,000-pounders. The effects of one near miss with a Tallboy tore a large hole in the bottom of the Lützow and she sank in shallow water at her moorings.
