Police in Muskego have arrested one person after an industrial fire this afternoon.

Fire crews from several departments responded to the Reynolds Machine Company off of Martin Road. The building is currently vacant and for sale.

What fire crews found at the scene immediately created suspicions.

"We had fires in multiple buildings. We also had several weeks ago, another fire at another building on the same property. Based on what we observed, we believe that these fires were most likely intentionally set," said Capt. David Constantineau of the Muskego Police Department.

There is no report of any injuries so far.

The police captain says one person has been arrested and they're looking for two others.

They also say two high school students have been working with police as witnesses. 

Stay with CBS 58 News for more information on this developing story.