BOISE, Idaho (AP) — The Latest on an explosion at an Idaho waste site (all times local): 12:20 a.m. Officials say an employee at a hazardous waste site in southwestern Idaho was killed after an explosion Saturday that also injured three workers and heavily damaged a building. US Ecology, which runs the site, says Monte "Alex" Green of Grand View, Idaho, died of his injuries from the explosion at 9:23 a.m.Read more on NewsOK.com