The election of Donald Trump as president has sparked protests across the United States.
In Oregon, dozens of people blocked traffic in Portland causing delays for trains on two rail lines. Media reports said the crowd grew to about 300 people, including some who sat in the middle of a road. The anti-Trump protesters burned American flags and chanted, "That's not my president."
Meanwhile demonstrators smashed windows and set bins on fire early on Wednesday in Oakland, California. Police Officer Marco Marquez said nearly 250 protesters damaged five businesses, breaking windows and spraying graffiti, but no arrests were made.
Elsewhere in California, a woman was struck by a car and badly injured when protesters got on to a main road, the California Highway Patrol said. Demonstrators vandalised the driver's SUV before officers intervened.
University students have been particularly vocal in their displeasure toward the election result. More than 1,000 students at Berkeley High School staged a walk-out and marched to the campus of the University of California. Police said at least 500 people swarmed streets in and around the UCLA campus, some shouting anti-Trump expletives and others chanting "Not my president!"
Students also walked out of two high schools in Oakland as well as a school in Phoenix, Arizona. While in Pennsylvania, hundreds of University of Pittsburgh students marched through the streets after the student-run campus newspaper, the Pitt News, tweeted about an event titled "Emergency Meeting: Let's Unite to Stop President Trump."
On Twitter, the hashtag "NotMyPresident" has been used nearly half a million times.