A nearly-empty building in northwest Iowa went up in flames early this morning. Fire officials are investigating a blaze that destroyed a large storage building in Dyersville. Fire crews from four area departments were called out at about four o’clock this morning to a storage facility on the northeast side of Dyersville. The building, which was four-hundred-feet long and 40-feet wide, was deemed a total loss. Most of the building was empty. No one was injured. The cause of the blaze is still under investigation