The major tragedy occurred on the evening of December 2nd when a swift, successful German air raid, took place on the port of Bari during the dusk period, when the harbour lighting was on, and off-loading took place at the quayside. Earlier in the day, during the morning, the crews working on deck, heard the engine noise of a German reconnaissance aircraft buzzing over their heads, high up in the sky. The film that was taken revealed that Bari harbour was crammed full of merchant ships carrying food, equipment, ammunition, everything that was necessary to maintain the Eighth Army advance and keep the RAF and Royal Navy well supplied with all their needs to continue the war.