June 7 (UPI) -- The Defense Department's Inspector General is investigating Defense Secretary Pete Hegseth's March 13 Signal chat ahead of the U.S. military's extended aerial strikes on Houthi targets in Yemen.
The IG's office initiated the investigation weeks ago and has interviewed current and former Hegseth staffers to learn how the chat and one other that occurred on the Signal encrypted mobile messaging app included civilians, ABC News reported.
A DOD IG spokesperson declined to comment on the investigation because it is ongoing.
Signal supports encrypted group messaging chats, but at least two chats discussed the onset of U.S. military action against the Houthis that started on March 15.
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