Police in Jefferson, Saturday, have confirmed there was a second explosion at the Landus grain elevator Saturday night, in Jefferson. The first explosion occurred Friday morning at the Landus Cooperative, in Jefferson. Landus officials said smoldering grain in a self-contained bin located next to the grain elevator led to the second, smaller dust explosion, which happened at around 7:15-p.m., Saturday. Authorities said there were no injuries in either explosion.