The Sacramento County Sheriff's Office responded to a home where an apparent unexploded ordnance was discovered. The homeowner's son uncovered what appeared to be a live 81-year-old mortar round while digging in the yard. The immediate area was evacuated and the U.S. Air Force was called in to remove the live mortar and destroy it. The incident occurred after residents were informed that unexplored ordnance has been found in the area since the 1973 Roseville yard explosion.