Officials: 11 people fall ill after suspicious letter opened at Fort Myer in Arlington

(Photo Courtesy of Fort Myer Professional Firefighters, IAFF Local F253)

Three people are in stable condition following a HAZMAT incident that impacted at least 11 people at Joint Base Myer-Henderson Hall in Arlington Tuesday.

Arlington County Fire officials report 11 people fell ill after coming in contact with a suspicious letter on the Marine Corps side of the base at around 3:30 p.m.

Three people were transported to the hospital following the incident. Their condition is now reported as stable.

CNN reports a corporal, gunnery sergeant and a colonel "exhibited symptoms of burning hands and face and one person had a nosebleed" when the letter was opened.

It is unclear who opened and who may have handled the letter at this time, according to CNN.

Local HAZMAT teams, the NCIS and the FBI are conducting a joint investigation.

Base officials say the administration building where the incident happened has now been screen and cleared.

The letter was removed, and it’s now in the custody of the FBI and will be taken to a lab for testing.

This story has been updated.

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