Taiwan has suffered one of the deadliest train crashes in its history. Authorities say at least 51 people have lost their lives and more than 60 are injured. But the full extent of the tragedy remains unclear.
The limited express train was carrying around 490 people when it went off the rails in a tunnel along the island's eastern coast.
Railway authorities say four of the eight cars are badly damaged. Rescuers are struggling to reach survivors inside cars in the tunnel.
They told NHK the train hit a construction vehicle, but the exact cause is under investigation.
A female passenger said, "The train was traveling at a normal speed, but it suddenly hit the brakes. I felt like we were pushed from behind."
The crash happened at around 9:30 a.m. local time on Friday, at the start of long weekend. The train was en route from the northern part of the island to the southeastern city of Taitung.