India, March 4 -- One of the US service members killed by an Iranian drone strike during Operation Epic Fury has been identified by the Pentagon as Sgt. 1st Class Noah Tietjens, 42, of Bellevue, Nebraska. Three others who lost their lives along with Tietjens were Capt. Cody Khork, 35, of Winter Haven, Fla.; Sgt. 1st Class Nicole Amor, 39, of White Bear Lake, Minnesota; and Sgt. Declan Coady, 20, of West Des Moines, Iowa.

The Pentagon has confirmed that the incident is under investigation.

Tietjens was assigned to the Army Reserve's 103rd Sustainment Command, which is based in Des Moines, Iowa, as were the three other soldiers, the New York Post reported.

His mother posted a note on Facebook, confirming his death. "Just to let everyone ...