June 6 (UPI) -- 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.

The FBI arrested a juvenile male from Columbia County on May 22 on state charges after executing a search warrant on his residence, but did not release his name.

Officials say the teen had planned to carry out the attack at the Three Rivers Crossing in Kelso, Wash, about 50 miles north of Portland along Interstate 5. The mall includes a mix of national retailers such as JCPenney, Target and Safeway and local business, including Regal Cinemas, local media reported.

The FBI said the teen had a small map of the mall and written plans that show he planned to use a chlorine bomb to cause an explosion that would force movie-goers to run from the building when he planned to shoot them them take his own life, the FBI said in a statement.

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