A subway train in the South Korean capital Seoul crashed into another one at a station on Friday, injuring about 170 people, news reports and the emergency services said, although no one appeared to be seriously hurt.

Witnesses said one train was leaving Sangwangsimni station in the east of the capital when it was hit from the rear by an incoming train.

One subway car was derailed and passengers walked a short distance along the tracks to the station, YTN television said.

Many of the injuries were caused by passengers jumping from the subway cars onto the tracks, a government emergency official said.

A doctor at a hospital near the station said injured people were walking in for treatment and did not appear to be seriously hurt.

A witness who said he was a passenger in one of the trains said it rammed into a train in front of it as it approached a station. He said he saw blood on the floor of a train car.

An onboard announcement initially told passen