Union is demanding better safety standards for workers and passengers after two collisions this week killed 44

Pedro Sanchez announces three days of mourning after at least 40 people died in Sunday's collision in southern Spain.

Trainee driver killed in accident near Barcelona just days after 43 died in collision between two high-speed trains

Union slams 'constant deterioration of railway' after major crash in southern Spain kills at least 43, injures dozens.

Union is demanding better safety standards for workers and passengers after two collisions this week killed 44