According to the Mason County Sheriff’s Office, the firework misfired and struck the boy in the back of the head. This happened shortly after 10:00 p.m. at a 4th of July celebration in the 100 block of Rockwood Drive.
Officials started CPR on the boy immediately. He was airlifted to Harborview Medical Center in Seattle. His condition has not been released.
Deputies say the firework was supposed to fly into the air like a mortar.
Stay with Q13 FOX News for updates on this developing story.