CBS/AP December 11, 2018, 1:17 AM 5 U.S. Marines missing since mid-air crash off Japan declared dead

A U.S. Marine Corps KC-130 Hercules tanker aircraft is seen in flight in undated photo

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TOKYO — The U.S. military has declared five missing crew members dead after their refueling plane collided with a fighter jet last week off Japan's southern coast. Search and recovery operations were called off.

The five crew members were on a KC-130 refueling aircraft that collided Thursday with an F/A-18 Hornet during regularly scheduled training. It wasn't clear whether the aircraft were practicing refueling when the mishap occurred, officials said.

The two crew members from the F/A-18 were recovered after the accident, but one died. The U.S. Marines said the survivor was in fair condition.

The military said in a statement that the next of kin of the five Marines have been notified and that their identities would be released within 24 hours of that notification.

The crew members were based at Iwakuni air station near Hiroshima.

A Litchfield Park, Arizona woman told CBS Phoenix affiliate KPHO-TV her son was among the missing. Rosa Bennett told CBS Phoenix affiliate KPHO-TV Maximo Flores, 27, had a heart of gold and a smile that could light up a room. "Oh, he was just very sweet. Always happy real smart and just a good guy," she remarked.

The Marines said the FA-18 pilot who lost his life was Capt. Jahmar F. Resilard, 28, of Miramar, Florida.

Lt. Col. James Compton called Resilard an "effective and dedicated leader who cared for his Marines and fellow pilots with passion." His decorations include the Navy and Marine Corps Achievement Medal, Global War on Terrorism Medal and National Defense Service Medal.

The crash was the latest in recent series of accidents involving the U.S. military deployed to and near Japan.

Last month, a U.S. Navy F/A-18 Hornet from the aircraft carrier USS Ronald Reagan crashed into the sea southwest of Japan's southern island of Okinawa, though its two pilots were rescued safely. In mid-October, a MH-60 Seahawk also belonging to the Ronald Reagan crashed off the Philippine Sea shortly after takeoff, causing non-fatal injuries to a dozen sailors.