UPDATE: Transformer Explosion Causes Fire in Fort Atkinson

UPDATED: Saturday, May 14, 2011 --- 4:00p.m.

Mike Hollman, Director of Administration at Nasco tells NBC15:

The company regained power on Saturday morning.

They re-opened their doors around 1 p.m.

Normal business hours will return on Monday.

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UPDATED Thursday, May 12, 2011 --- 12:23 p.m.
Posted Thursday, May 12, 2011 --- 12:00 p.m.

Click the video link above to see home video of the explosion sent in by Amanda of Fort Atkinson.

The Fort Atkinson Fire Department tells us that an electrical transformer blew up early Thursday morning at Nasco International Inc., 901 Janesville Avenue.

The roof of the main office caught fire and had to be extinguished by the fire department. There is substantial electrical damage to the main office as well.

There were no injuries. The Nasco main office is closed for today.