The FBI derailed a plot by a teenager who had planned to detonate a bomb at a Washington state shopping mall and shoot people as they fled a movie theater in the building, law enforcement authorities announced Thursday.

Authorities thwarted a planned mass shooting and bombing at a mall in Kelso, Washington, with the arrest of an Oregon juvenile who had detailed intentions to carry out the attack.

The suspect arrested after allegedly planning an elaborate mass shooting attack at Three Rivers Mall in Kelso, Wash., has been identified as a 14-year-old boy.