Portland Police have arrested 11 people and seized fireworks, hammers and a rifle, which has led the Oregon Governor Kate Brown to activate the National Guard in response to protests on the night after voting in the presidential election of the United States.
At the New York area, the police said they had made about 50 arrests in protests that spread in the city late on Wednesday.
There have been peaceful demonstrations, mostly small have taken place in cities across the United States by supporters of Democratic nominee Joe Biden.
The US President, Donald Trump has claimed victory and called for a halt to the counting of ballots in states that will determine the outcome of Tuesday’s election. Biden has said he believes he is on course to win once the votes are counted.
Protesters numbering about four in Denver after clashing with police, the Denver Police Department said. Arrests were also made during demonstrations in Minneapolis after protesters blocked traffic, local police there said.
Also some activists have staged rallies in Atlanta, Detroit and Oakland demanding that vote counts proceed unimpeded.
A Portland Police spokesman told Reuters in an emailed statement that “All of the gatherings that were declared riots were downtown.
“There have been 11 arrests tonight and we have not received any reports of injuries.”
A coalition of more than 165 grassroots organizations, advocacy groups and labor unions, under Local partners of Protect the Results have organized more than 100 events planned across the country between Wednesday and Saturday.
On Wednesday, about 100 people gathered for an interfaith event before a planned march through downtown Detroit, in the battleground state of Michigan, to demand a full vote count and a peaceful transition of power.
As the Nov. 3 elections approached, the United States had seen months of protests following the death in May of George Floyd, a Black man who died after a Minneapolis police officer knelt on his neck for nearly nine minutes.