(CNN) Five US Marines who were missing after two aircraft collided mid-air off the coast of Japan on Thursday morning have been declared dead, the US Marine Corps said.

The US military called off its search for the Marines on Tuesday, according to a statement from the Marine Expeditionary Force.

"The Marine Corps has pronounced the five remaining Marines involved in the F/A-18 and KC-130 aviation mishap deceased," the Marine Corps said in a statement. "The change in status comes at the conclusion of search and rescue operations."

The identities of the Marines have not been released, but the Marine Corps said their next of kin have been notified.

"Every possible effort was made to recover our crew, and I hope the families of these selfless Americans will find comfort in the incredible efforts made by the US, Japanese, and Australian forces during the search," Marine Corps Lt. Gen. Eric Smith, commander of the III Marine Expeditionary Force, said in the statement.