 "U-502" attacked Convoy TO-5, en route from Trinidad to Curaçao, on 9 June, about 35 miles north-east of Cape Blanco, Venezuela, sinking the Belgian 5,085-ton merchant ship "Bruxelles",
and damaging the American 6,589-ton tanker "Franklin K. Lane" to such an extent that it was abandoned and later sunk by gunfire from .On 15 June, "U-502" struck once again and sank three ships in a single day.The first, at 01