UPDATE: It could be a while before PennDOT employees return to the building.
A haze of smoke filled the Pennsylvania Department of Transportation’s offices early Tuesday.
It appeared that some sort of electrical fire on the second floor caused smoke inside the District 6-0 building along Geerdes Boulevard in King of Prussia shortly before 4 a.m., said KOP firefighters.
Fire crews brought in fans to clear out the smoke, which was heavy on the upper floors, said Montgomery County dispatchers.
There were a handful of employees inside the building at the time and they were able to get out after hearing the fire alarm, said firefighters. No one was hurt.
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The smoke caused power problems in the building and caused problems with PennDOT's traffic monitoring system, said firefighters.
Firefighters began to leave the scene around 5 a.m. as PennDOT tried to get everything back up and running as normal.
Firefighters continued to investigate the fire Tuesday morning.