On the night of 5/6 September, "Cesare Battisti", "Daniele Manin" and "Nazario Sauro" sailed, followed on 6/7 September by the destroyers "Leone" and "Tigre" to attack a northbound convoy (BN 4) found by air reconnaissance but found nothing. Further to the north, "Galileo Ferraris" and "Guglielmotti" also failed to find BN 4 but "Guglielmotti" torpedoed the Greek tanker "Atlas" (4,008 GRT) south of the Farasan Islands straggling behind the convoy. "Leone", "Pantera", "Cesare Battisti" and "Daniele Manin" with the submarines "Archimede" and "Gugliemotti" failed to find a convoy of 23 ships spotted by air reconnaissance. "Bhima" (5,280 GRT) in convoy BN 5 was damaged by bombs and one man killed; the ship was towed to Aden and beached. In August the British ran four convoys in each direction, five in September and seven in October, 86 ships in BN convoys and 72 in BS (southbound) convoys; the "Regia Aeronautica" managed only six air attacks in October and none after 4 November.