UPDATE: The casualty count has been updated to 2 dead, 17 injured in a shooting at a high school in Kentucky. The suspect, a 15-year-old male student, has been apprehended.
There have been at least 9 school shootings so far in 2018, based on media reports and data from Everytown for Gun Safety.
We'll update the post with more information on this developing story as we learn more.
Marshall County, Kentucky, high school shooting: what we know