But a lot of work remains at the derailment site.

Two investigators from the Accident Investigation Board are on site and will carry out their investigations of the rails and the damaged wagons before LKAB's salvage force receives a clearance permit.

Looking for more facts

- It is a very complicated task to investigate this accident.

We do not yet have enough facts and the investigators will continue to work tomorrow, says Johan Gustafsson, head of department at the Swedish Accident Investigation Board.

On Wednesday, the Accident Investigation Board will announce whether their investigation will lead to them conducting an investigation.