Photos: Portland anti-Trump protest turns into riot

Portland Police threatened to arrest rioters

A rioter sets fire to a tree in downtown Portland, November 10, 2016. (KOIN)

PORTLAND, Ore. (KOIN) — The third night of anti-Trump protests in Portland became violent and destructive, and police said they considered it a riot.

Anarchists set fires across the city, smashed windows of cars and businesses and refused to back down when police instructed them to leave the area.