The spokesman, 1st Lt. Fredric Walker, told the US military publication Marine Times on Tuesday that the pilots of the two aircraft landed safely after a "mid-air incident" over Marine Corps Air Ground Combat Center Twentynine Palms in southern California during training on February 28.
"No personnel were injured," the spokesman told the publication.
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This incident is the second major aviation accident for the Marine Corps so far this year.
On January 5, an AV-8B Harrier aircraft was damaged after it ingested a refuelling ground strap, the report said.
This year's incidents follow a deadly crash in early December off the coast of Japan in which six US Marines died after a KC-130 collided with an F/A-18.