The FBI and Portland Police stopped what would have been a terrorist attack on the Christmas tree lighting ceremony at Pioneer Courthouse Square. Sergeant Pete Simpson says Mohamed Osmun Mohamud, 19, a native of Somalia and a resident of Corvallis, was arrested Friday night after trying to remotely set off a bomb.

Mohamud didn't know the explosives in the van were inert. Simpson says the public was never in danger. The FBI has been on the case since Mohamud initially try to contact terrorists in Pakistan in 2009. He’ll make his first court appearance in Portland Monday.