The United States Department of War (DOW) has released the identities of the first four American service members killed since the start of the joint U.S.–Israeli campaign against Iran.

They are:

Capt. Cody A. Khork, 35, of Winter Haven, Florida
Sgt. 1st Class Noah L. Tietjens, 42, of Bellevue, Nebraska
Sgt. 1st Class Nicole M. Amor, 39, of White Bear Lake, Minnesota
Sgt. Declan J. Coady, 20, of West Des Moines, Iowa

All four were assigned to the 103rd Sustainment Command in Des Moines, Iowa. According to the department’s statement, an investigation into the incident remains ongoing.