Anger over Trump election victory explodes in protests

Anti-Trump protesters have burned flags, set garbage bins on fire and smashed windows in parts of the US.

Protesters gather in front of Sather Tower at U.C. Berkeley in Berkley, California, in opposition of Donald Trump's presidential election win Source: AAP

Demonstrators angry about the election of Donald Trump have smashed windows and set garbage bins on fire in downtown Oakland, California, joining protesters elsewhere in the country who swarmed streets in response to the election. Other protests were generally peaceful.

In Oregon, dozens of people blocked traffic in downtown Portland and forced a delay for trains on two light-rail lines. Media reports said the crowd grew to about 300 people, including some who sat in the middle of a road. The crowd of anti-Trump protesters burned American flags and chanted, "That's not my president."

In Pennsylvania, hundreds of University of Pittsburgh students marched through the streets, with some in the crowd calling for unity. The student-run campus newspaper, the Pitt News, tweeted about an event titled "Emergency Meeting: Let's Unite to Stop President Trump."

Madeline Lopes, left, and Cassidy Irwin, both of Oakland, march with other protesters in downtown Oakland, Calif, early Wednesday, Nov. 9, 2016. (AAP) Source: AAP

In Seattle, about 100 protesters gathered in the Capitol Hill neighbourhood, blocked roads and set a trash bin on fire.

On Twitter, the hashtag "NotMyPresident" had been used nearly half a million times.

The Oakland protest grew to about 250 people by late Tuesday. Police Officer Marco Marquez said protesters damaged five businesses, breaking windows and spraying graffiti. No arrests were made.

A woman was struck by a car and severely injured when protesters got onto a highway, the California Highway Patrol said. Demonstrators vandalised the driver's SUV before officers intervened. The highway was closed for about 20 minutes.

Elsewhere in California, more than 1,000 students at Berkeley High School staged a walk-out and marched to the campus of the University of California.

Students also walked out of two high schools in Oakland as well as a school in Phoenix, Arizona.

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!"

Smaller demonstrators were held at other University of California campuses and neighbourhoods in Irvine and Davis, and at California State University, San Jose.