A train driver has been killed and at least 37 people injured, five seriously, after a commuter train derailed and crashed near Barcelona two days after a deadly two-train collision in southern Spain.

Spain’s king and queen have visited the site of the collision of two high-speed trains that killed at least 42 people, as the country began three days of national mourning.

One person, thought to have been the driver, was declared dead at the scene and dozens of passengers have suffered serious injuries.