A commuter train hit a collapsed retaining wall near Barcelona on Tuesday, killing one person and injuring at least 15 people, according to officials.

BARCELONA, Spain -- The deadly train wreck in southern Spain has cast a pall over one of the nation’s symbols of success. The collision Sunday killed at least 40 people and injured dozens more, according to officials as of Monday night.

Her parents, brother and cousin were killed in the collision, but the girl was found walking barefoot on the tracks. She's being cared for by grandparents after receiving three stitches in her head.

Spanish rescuers used cranes and heavy machinery to gain access to the worst-hit carriages in one of Europe's deadliest train crashes as they sought to recover the remains of people still missing in a disaster that left at least 41 dead.