Dozens are dead and hundreds injured after a high-speed train veered off the tracks in Spain on Wednesday night. Here's a look at the 10 deadliest rail accidents in history:
10. Al Ayyat (Egypt, 2002) -- A cooking gas cylinder exploded and caused a fire that spread throughout the 11-car passenger train as it traveled from Cairo to Luxor, killing 383 people.
9. Awash (Ethiopia, 1985) -- A train traveling too fast derailed at Awash on the Addis Ababa-Djibouti Railway, plunging four of its five carriages into a ravine and killing at least 420 of the estimated 1,000 on board.
8. Balvano (Italy, 1944) -- Some 426 people illegally riding a steam-hauled freight train died of carbon monoxide poisoning when the train stalled on a steep gradient in the Armi tunnel near Balvano in southern Italy.
7. Torre del Bierzo (Spain, 1944) -- Three trains collided in a tunnel near the village of Torre del Bierzo in Spain's Leon province, killing as many as 500 people.
6. Ufa (Russia, 1989) -- A leaking natural gas pipeline created a highly-flammable cloud that was ignited by sparks from two nearby passenger trains, causing an explosion that killed 575 people.
5. Guadalajara (Mexico, 1915) -- More than 600 are killed when a train packed with an estimated 900 people veered off the tracks between Colima and Guadalajara and plunged into a deep ravine.
4. Bihar (India, 1981) -- As many as 800 people died when a passenger train derailed and plunged into the Bagmati River while crossing a bridge between Mansi and Saharsa in India's Bihar region. More than 200 bodies were recovered, but many more were washed away by the river.
3. Ciurea (Romania, 1917) -- A 26-car train loaded with World War I refugees and wounded Russian soldiers derailed and caught fire when the brakes failed, killing between 600 and 1,000 people.
2. Saint-Michel-de-Maurienne (France, 1917) -- A train carrying at least 1,000 French soldiers on their way back to the Italian front during World War I derailed as it descended into the Maurienne Valley, causing a catastrophic crash that killed approximately 700 people.
1. Peraliya (Sri Lanka, 2004) -- More than 1,700 people died when an overcrowded train was swept up by waves from the tsunami caused by the catastrophic 2004 earthquake in the Indian Ocean.