PORTLAND, Ore. - About 200 people have been arrested in Los Angeles after a mainly peaceful protest over the election of Donald Trump as president.

Police say about 3,000 people took to the streets Friday night, winding up near City Hall after several hours of marching. Some waved American flags or carried signs reading "Not My President."

Police began breaking up the protest at around 2 a.m. Saturday and arrested people for failure to disperse.

Police tell City News Service that three juveniles were arrested during the march for throwing a bottle at a police officer, vandalizing a police cruiser and curfew violation.

Thousands are expected to join protests throughout the weekend in L.A., San Francisco, Las Vegas and overseas.