The crash happened in LeFlore County, about 100 miles (160km) north of Jackson, the state capital.
All 16 victims were on the Marine Corps aircraft and there were no survivors, Leflore County emergency management director Fred Randle said.
Mississippi Governor Phil Bryant said the incident was a “tragedy”.
“Our men and women in uniform risk themselves every day to secure our freedom,” he said.
No official details were immediately available on the circumstances of the crash.
Mississippi outlet the Clarion-Ledger said the plane came down in a soybean field on the Sunflower-Leflore county line, and left a five-mile trail of debris. It said the FBI was assisting at the scene.
Local Fire Chief Marcus Banks told the Greenwood Commonwealth that firefighters were driven back by several “high-intensity explosions”, possibly caused by jet fuel igniting. He said 4,000 gallons of foam were sprayed at the aircraft in a bid to subdue the fire.
Captain Sarah Burns, a spokeswoman for the Marine Corps, said only that a US Marines KC-130 Hercules transport aircraft had “experienced a mishap”.
A Freelance Journalist, Entrepreneur and Philanthropist. Editor-in-Chief of www.233times.com. A contributory writer for Ghanaian Chronicle Newspaper. An alumnus of Adisadel College where he read General Arts. He holds first degree in Bachelor of Arts from the University of Ghana; Political Science (major) and History (minor). He has also pursued MSc Corporate Social Responsibility (CSR) and Energy with Public Relations (PR) at the Robert Gordon University in the United Kingdom. His mentors are Rupert Murdoch, Warren Buffet, Sam Jonah, Kwaku Sakyi Addo and Piers Morganview all posts by: Nana Kwesi Coomson
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