On 13 May 1940, a further 32 Hurricanes arrived. All ten requested Hurricane squadrons were then operating from French soil and felt the full force of the Nazi offensive. The following day, Hurricanes suffered heavy losses: 27 being shot down, 22 by Messerschmitts, with 15 pilots killed (another died some days later), including Squadron Leader J. B. Parnall (504 Sqn), and the Australian ace Flying Officer Les Clisby (1 Sqn). On the same day, 3 Squadron claimed 17 German aircraft shot down, 85 and 87 Squadrons together claimed four victories, while 607 Squadron claimed nine. During the following three days (15–17 May), no fewer than 51 Hurricanes were lost, in combat or in accidents.