RACINE, Wis. (WLS) -- A house exploded in Wisconsin on Tuesday evening, police said. Racine police said there was an explosion on Gilson Street near Mitchell Middle School, and two people are being treated for injuries. Their conditions are unknown, and the cause of the explosion is under investigation.

It — it was astounding how fast it spread.” On Tuesday around 6 p.m., the Racine Fire Department responded to a house explosion and fire on Gilson Street. Lau and Kraft say one of the residents of the duplex was trying to pull his daughter out from the wreckage.

Racine first responders spent Tuesday night, Feb. 18, on the scene of a house fire.