Reports: C-130 And F/A-18 Involved In A Mishap During Aerial Refueling Off Iwakuni, Japan. Seven Missing.

A Marine Fighter Attack Squadron 224 F/A-18 Hornet conducts an aerial refuel utilizing a KC-130J in coorlation with Weapons and Tactics Instructor Course in Yuma, Ariz., April 10. WTI is a seven-week training event hosted by MAWTS-1 cadre, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine Air Ground Task Force and provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Sgt. David Bickel/Released)

Developing Story: Two Aircraft Reported Down, Seven Aircrew Reported Missing.

Reports on Twitter indicate that two U.S. military aircraft have crashed during a midair refueling operation off Iwakuni, Japan.

Early reports that surfaced on Twitter report that an F/A-18 (unspecified variant) and a C-130 crashed into the sea with a total of seven crewmembers on board. The reports suggest the F/A-18 is a two-seat variant and five other crewmembers were on board the C-130.

The F/A-18 Hornet is a one or two-seat multi-role, twin engine tactical jet aircraft and the C-130 and its many versions including the U.S. Marine KC-130 aerial refueling variant is a large, four-engine turboprop used for numerous cargo, support and special missions by every branch of the U.S. military.

We will update this story as details become available.

Update Dec. 6, 13.30 GMT

Two of the aircrew involved in the mishap have been rescued. Search continues for the remaining five.