SEOUL, SOUTH KOREA (NBC) - Officials say around 200 people were hurt Friday by a subway collision in the South Korean capital.
A subway train plowed into the back of another train in Seoul.
Officials say about 150 were hospitalized but most had minor injuries.
According to subway officials, a preliminary investigation suggested there may have been a malfunction on the train's automatic distance control system.
Local media reported passengers had to wait for a long time for instructions.
That struck a nerve after last month's ferry sinking in South Korea, where hundreds died when an evacuation order wasn't issued immediately.