Four soldiers and seven Marines are missing after an Army helicopter crashed in the Florida Panhandle.

A spokesman at Eglin Air Force Base says there's no word on what caused the crash but there were what he called "weather issues" overnight.

The spokesman says search and rescue teams have found some debris.

The missing Marines are from a special operations regiment at Camp LeJeune, North Carolina.

The air crew and helicopters are with an Army National Guard unit from Hammond, Louisiana.  That's about an hour north of New Orleans.

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