An Oregon teen has been arrested in connection with an alleged mass shooting plot targeting the Three Rivers Mall in Kelso, in southwestern Washington, officials said. The suspect, whose identity has not been disclosed due to his age,

A teen suspect has been arrested in connection with a planned mass shooting at Three Rivers Mall in Kelso, Wash., FBI Portland announced.

The FBI and local authorities arrested a teen who allegedly planned a mass shooting with improvised explosives at a Washington state shopping mall.