Videos: Portland 2017 May Day protests

The event began peacefully but quickly turned violent and confrontational

Riot police confront participants in a May Day riot, May 1, 2017. (Portland Tribune)

PORTLAND, Ore. (KOIN) — A May Day march with a permit was quickly canceled by Portland police after projectiles were thrown, families were advised to leave the march and anarchists infiltrated the event, which was upgraded to a riot.