DETROIT (WWJ) -- An investigation is underway after a fire destroyed a discount store in Southwest Detroit Sunday morning.
"(Firefighters) went in, but the fire sort of backed them out. The fire was intense," Davis told WWJ's Jon Hewett.
Davis said firefighters heard explosions and later discovered there were guns inside the store.
One firefighter was injured but is expected to be okay.
Authorities are still investigating the cause of the blaze.