FBI thwarts teen's alleged 'serious' mall attack plot involving explosives, gunfire

The FBI and law enforcement officials in Columbia County, Oregon, arrested a teenager late last month who was allegedly planning to carry out a mass shooting involving explosives at a Washington state shopping mall.

In a news release Thursday, the FBI said the teen, whose name was not released, was arrested May 22 by deputies with the Columbia County Sheriff’s Office.

The FBI learned of "detailed and imminent" attack plans after they were reported to the agency just two days before the juvenile’s arrest.