KG 55 reverted to rail interdiction against the Kantemirovka and Rossosh regions on 11 June. On the 13 June the "Gruppe" flew its 10,000th mission (7, 680 in Russia). It returned to bombing Saratov on the night of the 14/15 June 1943. 9 "Staffel" equipped with the Ju 88C-6, and attacked rail targets for the remainder of June. The 9 and 20 June bombing of Yaroslavl was carried out by 102 and 88 bombers respectively dropped 324 tons of bombs. Against Saratov, from 12 to 15 June, the German bombers dropped 181 tons. The raid by 138 He 111s on 9/10 June cost the Germans three bombers. Losses mounted as the Soviet night fighters took advantage of brighter summer nights. On 13/14 June attack, 20/21 June raid, 21/22 June, one bomber (KG 27), six (one from KG 3, two from KG 1 and three from KG 27) were lost. One KG 55 bomber barely evaded an attack by a night fighter.