A student pilot and his instructor died in the November 2019 accident.
First Lt. Kenneth Allen died when his F-15C Eagle crashed Monday.
A U.S. fighter plane with one pilot on board crashed into the North Sea on Monday. The status of the pilot isn't known.
The Defense Department has identified all seven combat search and rescue airmen killed in the HH-60 Pave Hawk crash in Iraq.
The 2019 crash killed Lt. Col. John "Matt" Kincade, 47, and 2nd Lt. Travis B. Wilkie, 23.
The voluntary “stand-down” is in place for an undetermined period.
The Minnesota National Guard will release the names of the deceased crew members on Saturday.
The pilot from the 8th Fighter Wing suffered minor injuries when he ejected during a landing after a routine sortie Monday.
The condition of the National Guard members aboard remains unclear.
The National Guard lost contact with the helicopter shortly after it took off on a maintenance test flight from St. Cloud.