A Navy corpsman and 15 Marines were killed when a military plane crashed in rural MS as it was headed from North Carolina to California, a Marine spokesman said.
Six of the Marines and the sailor were members of the 2nd Marine Raider Battalion under the Marine Corps Forces, Special Operations Command (MARSOC), 2nd Lt. Stephanie L. Leguizamon said.
There are still no official statements or reports on the cause of the crash and the subsequent deaths.
US President Donald Trump, in a tweet, said the news was "heartbreaking". "He will be missed, and I send my condolences and prayers to his family and friends". The aircraft spiraled into the ground at 85 miles per hour, just north of Jackson in the Mississippi Delta.
The service has yet to release the names of the dead as it is still in the process of notifying next of kin.
Greenwood Fire Chief Marcus Banks told the Greenwood Commonwealth that debris from the plane was scattered in a radius of about 5 miles (8 kilometers).
Dan Baldassarem, Owen Lennon and Julian Kevianne were among the 16 people killed in Monday's crash. It can be configured to refuel aircraft in midair in addition to being a general objective cargo and personnel transport.
One of the most recent crashes of a US C-130 cargo plane happened in October 2015, when one went down 28 seconds after takeoff from Afghanistan's Jalalabad Airport near the Pakistani border as it was heading to Bagram Airfield. The force of the crash almost flattened the plane, Jones said. According to Jones, the fire fighters tried their best to control and put out the flames; however, an explosion forced them to push back further.
Tillis said the crash is a reminder of the dangers that military personnel face even on training missions.