A passenger train derailed near Córdoba and collided with a second train traveling in the opposite direction. The cause of the derailment is unknown.

At least 39 people died in Spain after a train derailed and collided with an oncoming one in the worst railway accident in the country since 2013.

The deadly train wreck in southern Spain has cast a pall over one of the nation’s symbols of success. Sunday's collision killed at least 42 people and injured dozens more, according to officials on Tuesday.

Spain has woken to flags at half staff on Tuesday as the nation began three days of mourning for the victims of the deadly train accident in the country’s south, while emergency crews continue searchi

At least 40 people were killed and 152 more were injured after a collision between two high-speed trains in southern Spain on Sunday, according to officials. ABC News' Tom Soufi Burridge reports.

Spanish Prime Minister Pedro Sanchez and Transport Minister Oscar Puente were among officials who visited the crash scene on Monday morning. Sanchez cancelled his trip to the Worl

Update on two trains that collided in Spain, marking the country’s deadliest rail disaster in more than a decade. CNN’s Pau Mosquera reports.

Spanish police said Monday that at least 39 people died in the a high-speed train collision Sunday in southern Spain and rescue efforts were continuing