Sunset Beach firefighters responded to a jetski accident off Bird Island, which lies in between North and South Carolina.
The incident was discovered in the Little River Inlet as rescue crews with the Sunset Beach Fire Department were participating in a water rescue class near Bird Island, said Brunswick County Fire Marshal Scott Garner.
The injured participating were part of a jetski tour and were injured on the rocks in the jetty, Garner said.
He said none of the injuries was life threatening, and five people were taken to the hospital.
The Coast Guard and Brunswick County and Horry County fire departments were called in to assist.