 In early 1945 Gjems-Onstad took part in blowing up railway tracks on the stretches around Støren Station, but the group had a limited supply of explosives, and the practical effects of the bombings could thus not cause as much effect as wanted.They could for instance not go through with blowing up the railway bridge near Hovin, which they sought as their main target.He was transferred back to Stockholm in March 1945, and Durham was dissolved.