Updated

A U.S. military helicopter crashed Tuesday near South Korea's border with the North while conducting routine flight operations and everyone on board survived.

A spokesperson for U.S. Forces Korea tells Fox News the Marine Super Stallion CH-53E helicopter made a hard landing near South Korea's Jipo-ri Range Tuesday.

All 21 people aboard the helicopter were transported to a local hospital, where 15 were released and six were hospitalized in stable condition.

16 of the passengers were American soldiers, and five were crew members. The crew is from 31st Marine Expeditionary Unit based in Okinawa, Japan

The United States has approximately 28,000 troops in South Korea, according to Reuters.

Fox News' Greg Palkot and Reuters contributed to this report