Two trains running on the same track collided head-on in the Polish village of Szczekociny on Saturday night killing 14 people and seriously injuring more than 60 people.
Up to 350 passengers were on board the two trains at the time of the accident at 9:00 pm local time (20:00 GMT).
The accident occurred when a train moving north from Przemysl to Warsaw rammed a southbound train from Warsaw to Krakow.
Hundreds of firemen and police personnel were involved in the rescue efforts to save injured passengers.
An investigation has been ordered into the cause of the crash.
Take a look at the scene of the train crash:
Polish emergency services work at the site of a train crash near the town of Szczechociny March 4, 2012. At least 14 people were killed when two passenger trains collided head-on in southern Poland late on Saturday in one of the country's worst train crashes in more than 20 years.ReutersPolish emergency services work at the site of a train crash near the town of Szczechociny March 4, 2012.ReutersPolish emergency services evacuate a casualty as they work at the site of a train crash near the town of Szczechociny March 4, 2012.ReutersRescuers work late on March 3, 2012 at the scene where two trains crashed head-on in Szczekociny, southern Poland, killing several people and injuring more than 60 passengers.PAEscuers work late on March 3, 2012 at the scene where two trains crashed head-on in Szczekociny, southern Poland, killing several people and injuring more than 60 passengers.PA