The U-boat surfaced and sank the stern section with her deck gun .
After the crew of 44 men abandoned ship in three lifeboats a second torpedo broke the ship in two , and the bow section sank .
The U-boat surfaced and sank the stern section with crew 's deck gun .
After the crew of 44 men abandoned ship in three lifeboats a second torpedo broke the ship in two , and the bow section sank .