This attack could be related to the picture:
http://66.102.9.104/search?q=cache:_...rbo+1945&hl=no
"March 27 1945.
Flight Lieutenant Yourg, while flying an armed patrol of the Utsire—Naze area came across, and attacked a freight train near Naerbo, strafing it with cannon and machine gun fire."
Nærbø/Naerboe isn't far from Stavanger, and one sidetracks on this line was also used for German railroad artillery stationed there.
regards.
Tormod Christiansen.