The Illinois National Guard locked down two buildings on Camp Lincoln grounds after an envelope containing a suspicious substance was opened. Three envelopes believed to be from the same, unknown source were delivered to Camp Lincoln.
All three envelopes were turned over to the Springfield Fire Department and Sangamon County Sheriff’s office for their investigation. Personnel with the Illinois Air National Guard’s 183rd Fighter wing Bio-Environmental Engineering Team and 5th Civil Support Team also responded to augment the investigation.
