Seven marines and four soldiers were missing early Wednesday after an Army helicopter crashed during a night training exercise at Eglin Air Force Base in the Florida Panhandle, AP reported. Base officials said the Marines are part of a Camp Lejeune-based special operations group and the soldiers were from a Hammond, Louisiana-based National Guard unit. The helicopter was reported missing around 8:30 p.m. Tuesday and search and rescue crews found debris from the crash around 2 a.m. Wednesday, Eglin spokesman Andy Bourland said. "At this time all are missing," Bourland said.