A military helicopter crashed late Wednesday in a rural area near Joint Base LewisMcChord in Washington state, a base spokesperson said.

"This remains a developing situation, and no additional details are available at this time," Scot Keith, a JBLM garrison public affairs officer, told ABC News.

The main flag pole in front of the U.S. Army I Corps headquarters on Joint Base Lewis-McChord, south of Tacoma, Wash., hangs at half-staff, Wednesday, Dec. 5, 2018. AP Photo/Ted S. Warren, File

The helicopter crashed at about 9 p.m. local time, Keith said.

The Thurston County Sheriff's Office earlier said deputies were responding after a possible helicopter crash near Joint Base LewisMcChord in Washington state.

Initial reports said the crash may have occurred near Summit Lake, the sheriff

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