The latest reports from the National Fire Agency say 490 people were on the train, with 48 dead and some 66 injured.
‘Sudden violent jolt’
The crash took place at about 09:00 local time (01:00 GMT).
Some people at the back of the train were able to walk away unscathed, while 100 were rescued from the first four carriages. Many of the dead, injured and trapped were in four crumpled carriages inside the tunnel.
“It felt like there was a sudden violent jolt and I found myself falling to the floor,” one female survivor told Taiwan’s UDN. “We broke the window to climb to the roof of the train to get out.”
Another rescued woman said: “My whole body fell to the floor. I hit my head and it started bleeding.”
A 50-year-old survivor told Apple Daily she saw many people trapped under their seats and when she walked out of her carriage she saw bodies everywhere.