Saint Louis UFO Sighting

in 1997 i and three other family members witnessed a real ufo sighting. there was a fire in an abandoned building across the street from us.we saw the whole thing through our front door. minutes went by. all of a sudden we saw a disc shaped object appear over the abandoned building. it had a metallic look. it had lights in the middle and they were moving in a circular motion. we observed the object for about five minutes then it quickly flew off into the sky.