A spokesperson for the U.S.

Air Force told news outlets Wednesday an F-16 from Nevada's Nellis Air Force Base had crashed in the state.

The condition of the pilot wasn't known as of about 1:15 Pacific time.

A local news outlet said the crash was during a training flight.

It wasn't immediately clear how it happened.

The crash was the third for the U.S. military in two days.

Tuesday afternoon, a Marine helicopter  went down  in Southern California, presumably killing all four crew members onboard.

Also Tuesday, a Marine pilot was injured after having to eject during takeoff at an airport in Djibouti.