Singer Rise is the second member of Ladies' Code to die from a road accident, four days after a car crash that claimed the life of 22-year-old Go Eun-bi.
The 23-year-old had been in a coma since undergoing emergency brain surgery for a head injury.
"At the time of the accident on the 3rd, RiSe obtained a big injury to her head and was moved to the hospital," her label said in a statement.
"She was operated on as much as possible for a long time, but she has ultimately passed away."
The K-pop group were travelling in South Korea when the vehicle reportedly crashed into the guard rail.
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It's believed EunB died almost immediately.
One member suffered a fractured jaw, while two others sustained minor injuries.
Police are now investigating the incident.
K-pop singers have taken to social media to mourn both of the K-pop stars.
