sentences:  When Soviet summer offensive of 1944 started "Turunmaa" was first part of the flotilla evacuating the Koivisto region.And later took part in the fighting at Bay of Viborg on 4 July 1944 as part of the Battle Group Arho consisting of Finnish and German light naval units.While defending against repeated air attacks and attacks by motor torpedo boats two bombs exploded under the boilerroom of "Turunmaa".