Shotguns, bulldozers, high explosives, poison gas, and incendiaries were used to destroy rats. Richthofen's airmen flew 183 to 197 sorties, dropping equal quantities of high explosives and incendiaries. On 10/11 March, 240 bombers dropped 193 tons of high explosives and 46,000 incendiaries. Wave after wave of bombers dropped their incendiaries, high explosives and land-mines. Thornton Heath also attracted a deluge of heavy bombs and incendiaries. The total tonnage of bombs dropped was 1,455 tons with two-thirds of that being incendiaries. The attackers released incendiaries and SC500 bombs with little effect. Between 3 and 6 June, 2,355 missions showered 1,800 tons of bombs and 23,000 incendiaries. Three of these were high-explosive munitions and one was a bundle of incendiaries. Added to ordnance were incendiaries, some also fitted with high explosive. The report stated that of bombs were dropped, with 10 to 14 percent being incendiaries. German air units dropped 560 tonnes of high explosive and 72 tonnes of incendiaries. The firebombing attacks ended only because XXI Bomber Command's stocks of incendiaries were exhausted. On 8 September, 6,327 incendiaries alone were dropped causing 183 fires. These trials demonstrated that M69 incendiaries were particularly effective at starting uncontrollable fires.