The CH-53E Super Stallion chopper was “conducting routine flight operations” during an exercise near South Korea’s Jipo-ri Range at the time of the incident, according to a military statement.
All 21 personnel aboard were hospitalized but 15 were treated and released. Six remained in stable condition.
Its crew was from the 31st Marine Expeditionary Unit and is stationed in Okinawa, Japan.
Source: Jason Cumming for NBC News