Minor attacks, which caused light damage, took place on 26 June (22 dead and 23 wounded), 5 July (five dead and one wounded), 21 July (nine wounded), 24 July (three dead), 29 July (three dead and eight wounded), 7 August, 9 August, 16 August, 22 August (three deaths) and 23 August. On 24 August 76 bombers of the Royal Air Force dropped 190 tons of bombs on the marshalling yard; again the bombs hit the city was well, especially the Sant’Orsola and Bolognina districts, leveling 48 buildings, destroying partially 46 and causing damage to 142. Victims were about one hundred. Minor raids followed on 25, 26, 27, 28 and 31 August. On 1 September 75 RAF bombers dropped 160 tons of bombs on the marshalling yard, hitting both the target and the city, especially the Arcoveggio and Bolognina districts. Seventeen buildings were completely destroyed, 44 were partially destroyed, 52 were damaged; casualties were about one hundred. On 5 September a minor raid caused one death and four wounded, and on the following day 51 British bombers (out of 67 that had taken off; one was shot down) dropped 177 tons of bombs on the marshalling yard, hitting both the objective and the city and causing nine dead and eight wounded. On 12 September 84 RAF bombers dropped 241 tons of bombs on the San Donato marshalling yard, hitting again both the target and the city (one victim, four buildings completely destroyed, six partially destroyed, twenty-one damaged). Two minor air raids took place on 13 and 14 September. In the September raids, the RAF made use of 4,000-lb blockbuster bombs; these attacks also saw the participation of Free French fighter-bombers. On 16 September, 120 bombers of the 12th Air Force attacked the marshalling yard, but most of the bombs fell on the city, especially the northern suburbs; 72 buildings suffered damage (14 were destroyed completely, 13 destroyed partially, 45 damaged) and 59 civilians lost their lives, with eighteen wounded. On the following day, another attack by thirty bombers caused seven dead, six wounded, the complete destruction of six buildings, the partial destruction of twelve and damag to another six; on 18 September a raid by ten bombers caused one victim. Minor attacks followed on 23, 24 (eight dead and four wounded), 26 and 27 September (three victims) and 3 October; on 4 October, as Allied troops gradually advanced northwards, Bologna was shelled for the first time by American artillery.