Updated:VOLUSIA COUNTY, Fla. —
Portions of the Volusia County Branch Jail were placed on lockdown, and the ventilation systems were secured following the discovery of an unknown substance in the mail room at 8:39 a.m., according to authorities.
However, the FBI's terrorism task force was called to the scene to investigate, and deemed the powder harmless.
The lobby and booking areas were placed on lockdown, but have since reopened.
The Volusia County hazmat team, along with supporting units from Volusia County Fire Services and Daytona Beach Fire Rescue, were at the scene to test the substance.
Eight jail workers in the mail room were quarantined after one of them found white powder in an envelope addressed to an inmate, authorities said.
Officials said the powder was identified as creatine, which is used often for body building.
The letter sent to Jacksonville for further testing.