II./KG 1 carried out similar operations and it bombed Leningrad on 3 July. It extended its sphere of operations into the Baltic Sea and Gulf of Finland, attacking Soviet shipping and the Baltic Fleet. Both groups moved to Saborovka. It focused on rail and road targets near Bologoye on 23 July while supporting the general advance to Leningrad. Attacks against Soviet shipping took priority in late August: between Narva and Kronstadt. In September attacks on naval traffic on Lake Ladoga and in the Gulf of Finland became the focus of KG 1's operations. KG 1 was also active against the Soviet evacuation of Tallinn. On 28 August KG 77 and KGr 806 sank the 2,026 grt steamer "Vironia", the 2,317 grt Lucerne, the 1,423 grt "Atis Kronvalds" and the ice breaker "Krišjānis Valdemārs" (2,250 grt). The rest of the Soviet fleet were forced to change course. This took them through a heavily mined area. As a result, 21 Soviet warships, including five destroyers, struck mines and sank. On 29 August, the Ju 88s accounted for the transport ships "Vtoraya Pyatiletka" (3,974 grt), Kalpaks (2,190 grt) and "Leningradsovet" (1,270 grt) sunk. In addition, the ships "Ivan Papanin", "Saule", Kazakhstan and the "Serp i Molot" were damaged by I./KG 4, which also sank three more. Some 5,000 Soviet soldiers died.