A structure fire damaged the parole office in Moscow, Idaho, Thursday, Nov. 21.

The building was unoccupied at the time, and investigators are treating the fire as suspicious, Moscow Police Chief David Duke said.

He said major damage was done to the west side of the building where the fire began, but there were no injuries. Firefighters, who responded to the scene around 8 a.m., had the flames extinguished by 9:30 a.m.

There were no bombs or explosions involved. Duke said there were also no open flames or electrical sources nearby that could start a fire.

People who were in the area of the 3100 block of South Main Street at the time and saw anything suspicious are asked to call the Moscow Police Department or their anonymous tip line.