Heavy machinery is being used to assist in the recovery following a two-train crash in southern Spain which killed at least 41 people.
Rescuers worked through a second night as more bodies are feared to be trapped in the wreckage.
More than 120 people were injured when carriages on a Madrid-bound train derailed and crossed over to the opposite tracks, hitting an oncoming train in Adamuz on Sunday evening.
A faulty or damaged weld on a rail is being investigated as a factor in the crash, Spanish media report.
Prime Minister Pedro Sanchez has cancelled his planned trip to the World Economic Forum in Davos, pledging to get to the bottom of Spain's worst train disaster in more than a decade.
