A 49-year-old brigadier general who died Friday in Afghanistan of apparent natural causes is likely the highest-ranking military officer to die there, according to military records.

Fort Hood announced Brig. Gen. Terence Hildner’s death Saturday in a statement posted on its website. Hildner had commanded the 13th Expeditionary Sustainment Command at Fort Hood since August 2010. He left for Afghanistan in December to support the NATO mission there.

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