OAKLAND, Calif. (AP) — Oakland police and protesters clashed late Saturday night after an evening of mostly peaceful demonstrations calling for social justice, the defunding of police and the end to racism, the East Bay Times reported.

The demonstrators were marching downtown about 10 p.m. when police declared the assembly unlawful and ordered the crowds to disperse. Police said rocks and bottles were then thrown and lasers aimed at officers, the Times reported.

The newspaper reported that one officer was said to have been injured. Police said those in the crowd were using shields to assault the officers.

On Wednesday night, protesters in Oakland set fires, broke windows and vandalized businesses.

In San Jose, a crowd spray-painted graffiti on Mayor Sam Liccardo's home with phrases that included “BLM,” Jacob Blake and profanities, fired paintballs and burned a flag. His neighbors quickly banded together to clean Liccardo’s home.

Liccardo said in a statement Saturday he was away visiting a relative at the time of the incident. The mayor said the vandalism does not detract from his support of the Black Lives Matter movement.

“Many of these same neighbors’ homes bear ‘Black Lives Matter' signs, and they represent the true spirit of the movement, and of our San Jose community,” he said. "They contrast sharply with the roughly hundred so-called ‘protesters’ who stood by silently — or even cheered — as a flag was burned and while ‘f(asterisk)ck you’ and other messages were scrawled on our home.”

The San Jose Police Department said that it is investigating the vandalism at Liccardo's home and at City Hall, where a suspect was arrested for felony vandalism.

At least six people were arrested in San Diego after police stopped a car that had run a red light while following the protesters, police said.

The crowd “surged” to the spot and several people were held after shining lasers at officers and a helicopter, punching an officer and spraying a “chemical irritant" at officers, according to police tweets.

In Sacramento, police tweeted that 150 to 200 people were marching and said many had “helmets, shields, armor and weapons."

However, live helicopter reports from KCRA-TV appeared to show far fewer people. No sweeping violence or vandalism appeared to have been committed by late Friday night, although police tweets said some motorcycle officers were struck by rocks and lasers were pointed at a police helicopter as the group marched.

Sacramento police said in a tweet it arrested one person after a report of someone carrying a gun. The weapon was found to be a BB gun, the department said.

Earlier in the day, Sacramento County Sheriff Scott Jones said he had asked for the deployment of National Guard troops in the state capital after scattered violence Thursday night that included spraying graffiti on City Hall, smashing some windows and vandalizing government buildings.

The violence came from a second group of marchers that followed an earlier, peaceful protest.

Blake is the 29-year-old Black man who was shot in the back seven times on Sunday by police in Kenosha, Wisconsin, as he pulled away from an officer and leaned into his SUV, in which three of his children were seated. A family attorney on Tuesday said Blake was paralyzed, and it would “take a miracle” for him to walk again.