WASHINGTON – The Naval Criminal Investigative Service and the FBI are investigating a suspicious letter received Tuesday at Myer-Henderson Hall Joint Base in Arlington, Virginia.
A dangerous materials team was dispatched after the letter containing an unknown substance 11 and sent three to the hospital. The three have since been released from the hospital.
The letter was received around 15:30. on the Marine Corps side of the base, according to a press release from Joint Base Myer-Henderson Hall.
"Several Marines receive medical care as a result of this incident," a Pentagon statement said Tuesday evening before her release
The symptoms in those affected were, according to sources who were familiar with the situation, nosebleeds and burning hands ,
"The staff in the affected building immediately took preventative measures by evacuating the building," the Pentagon said. "Base officials … coordinate local hazardous goods teams and FBI."
The Arlington facility is the headquarters for the DC staff.
Crew 161 of the 161 engine evacuated and decontaminated 11 patients from the EMS-3 danger area into hospital area. All units recorded scene turned over to @FBIWFO @FBI pic.twitter.com/cAbNW75zOJ
– IAFF LOCAL F253 (@FortMyerFire) February 28, 2018
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