The train dispatcher central chose to lead the runaway train in the direction of Sjursøya, along the Loenga–Alnabru Line, where it derailed and rolled through a Statoil building in the terminal area at Sjursøya, a peninsula which is part of the Oslo ports facilities.
The set of empty CargoNet wagons was parked at Alnabru Freight Terminal, pending use later in the day.
The structure, where several people had been working, collapsed and part of the train fell into the fjord.
[6] A similar accident occurred in 1981, when runaway freight cars belonging to Norwegian State Railways derailed near the bridge over Loenga, only 100 meters from Sjursøya.
[7] An incident with runaway CargoNet freight cars also occurred in the terminal area at Trondheim Central Station on 28 January 2010, but this accident caused only material damage.
[9] It was a "misunderstanding between the shunter and another train manager" which caused the empty freight cars to roll.