Updated: 06/02/2014 3:35 PM
Created: 06/02/2014 2:51 PM KAALtv.com
(ABC 6 NEWS/KSTP-TV) -- White powder found in a letter opened Monday by staff at Gov. Mark Dayton's residence in St. Paul will take three to five days to identify, according to officials.
The letter was opened Monday morning in a building outside of the main home at 1006 Summit Ave., according to Doug Neville, spokesman for the Department of Public Safety.
Dayton was home at the time, but wasn't near the letter, Neville said.
The letter was considered non-threatening, Neville said.
The two employees who opened the letter were being decontaminated Monday afternoon, said Eric Roeske, spokesperson for the state patrol.
After discovering the substance, staff followed procedure and contacted the Minnesota State Patrol, who then called the St. Paul Fire Department, Neville said.
Emergency vehicles and hazmat crews could be seen on the property Monday morning and afternoon.