PORTLAND, Ore. (AP) — Hundreds of people gathered for Black Lives Matter rallies and marches Saturday night in Portland, Oregon, as often violent nightly demonstrations that have happened for 100 days showed no signs of ceasing. Molotov cocktails were thrown in the street during a march, sparking a large fire and prompting police to declare a riot. Police say at least one community member was injured. Protesters had gathered around sunset Saturday at a grassy park in the city. Wooden shields were placed on the grass for protesters to use as protection. Demonstrations in Portland started in late May after the police killing of George Floyd in Minneapolis.