An electrical fire forced the evacuation of an office building in the Eagleview Complex Thursday. Firefighters were called to Bentley Software at 685 Stockton Drive for a fire at 12:36 p.m.

Lionville Fire Company Deputy Chief Michael Holmes said the fire was contained to the electric room on the second floor of the building. All employees safely evacuated, the building sprinkler system activated and firefighters used dry power extinguishers to contain the fire until PECO was able to respond an turn off the power, Holmes said.

Holmes said the fire was under control in 20 minutes. He described the damage to the structure as minimal, but that there was extensive damage to the electrical system of the building, Holmes said. The company’s main computer servers were located in another building in the complex, he said.

Firefighters checked the roof for extension of hidden fire and fans to remove smoke.

Jeff Purcell, Pennsylvania State police Fire Marshal, said there was no information on the cause or amount of damage at this time. The fire is being investigated by the Chester County Fire Marshals office and the State Police Fire Marshal.

Lionville was aided by Minquas and West Whiteland Fire companies.