2 dead after firefighters are ambushed in Coeur d'Alene, Idaho: Live Updates https://www.nbcnews.com/news/us-news/live-blog/2-dead-firefighters-ambushed-coeur-dalene-idaho-live-updates-rcna215857

"...Firefighters responded to an intentionally set fire before being shot at, they said, adding that "ambush" accurately describes what happened to those first at the scene."