At least 16 people have died after a US military plane crashed in the southern state of Mississippi at around 16:00 local time (21:00 GMT) on Monday.
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.