Two South Korean passenger trains collided Tuesday on an eastern coastal track, killing one person and injuring around 80 more, local media said.
It was the latest in a series of accidents that have made public transport safety a hot-button issue following the Sewol ferry disaster in April that killed around 300 people.
The Yonhap news agency said the force of the collision, which occurred shortly before 6:00pm (0900 GMT), caused one of the trains to derail.
One passenger died and about 80 others were being treated for injuries, the agency quoted local emergency service officials as saying.
President Park Geun-Hye, who was criticised for her response to the Sewol tragedy, has ordered a national overhaul of safety standards.