It happened just before 7 a.m. in the Parkland neighborhood.

"Today we recognize you and we thank you. Your legacy and the standard you establish is our great inheritance. We will never forget."

Louisville Fire Chief Brian O'Neill said he hopes his department's investigation into the plant explosion that killed two people Tuesday afternoon in Clifton should wrap up this weekend.

The building is a total loss and parts of it have collapsed. 

The building is a total loss and parts of it have collapsed.