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A U.S. Marine Corps F/A-18 Hornet fighter jet crashed northeast of Cambridge, England, Wednesday morning; officials say the pilot did not survive the crash. The plane had taken off from RAF Lakenheath in Suffolk.

"Response efforts are under way and the incident is currently under investigation," the Marine Corps says.

Update at 1:30 p.m. ET: Details On Plane And Flight

The crashed plane belongs to the Marine Attack Fighter Squadron 232 stationed at Marine Corps Air Station Miramar, according to a U.S. Air Force statement issued from the Lakenheath base.

"The aircraft was transiting from Bahrain to Miramar in a flight of six aircraft when it crashed approximately six miles northwest of the airfield," the statement says. "The remaining five F/A-18C's safely diverted to RAF Lossiemouth."

The message concluded, "Our deepest condolences go out to the family and friends of the pilot. The cause of the crash is still unknown."

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According to aviation website Airlive, the fighter was one of several F/A-18s that had recently arrived at Lakenheath and were on their way back to the U.S. after being deployed in the Middle East.

The site also says that the jet's pilot ejected from the craft, but did not survive. Witnesses are telling local media that they saw a parachute in the sky.

The crash occurred in a rural area near the town of Ely, in a region that's dominated by farmland.

The area is close to two air bases that are only a few miles apart; despite their official designation as RAF air stations, both serve as hosts to U.S. Air Force units. RAF Lakenheath is home to the F-15s of the 48th Fighter Wing; RAF Mildenhall houses the 100th Air Refueling Wing.

A witness who spoke to Cambridge News, Patrick Turner, 72, of Redmere, described the crash, which happened before 11 a.m. local time:

"I was outside in my shed and heard an aircraft coming over. All of a sudden all hell broke loose. The noise was terrible - I've never heard that before. I looked up to the sky but it was so foggy that I couldn't see anything."

Turner lives across a field from the crash site, where he says he then saw a "massive fireball."

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