3 officers injured & 30 people arrested in latest Trump protest in Oakland

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Thirty people were arrested, and three Oakland Police officers were injured during a second consecutive night of protests against Donald Trump and his election victory.

It's unclear the extent of the officers' injuries, but demonstrators hurled rocks, bottles, fireworks and molotov cocktails at police Wednesday night into early Thursday morning.

The violence began with a peaceful march at Frank Ogawa Plaza.

According to police, some protesters later broke off into smaller groups and started vandalizing businesses and other properties along 14th Street and Broadway.

Twelve outside law enforcement agencies assisted Oakland Police in trying to maintain order.

They included police departments from Berkeley, Alameda, San Leandro and Hayward, along with the Alameda County Sheriff's office, Solano County agencies, and the California Highway Patrol.

Three Pleasanton Police vehicles were vandalized, with smashed windows and graffiti scrawled on the doors of the sport utility vehicles.

According to authorities, there were at least 16 reports of businesses and other structures vandalized, including a Walgreens and a Chase bank.

Police arrested 30-people and issued 11 citations.

Charges ranged from assaulting an officer, vandalism, unlawful assembly, and possession of a firearm.

Protesters also set about 40 fires, said police.

Most were small dumpster fires, but there's one case of arson to a business.

One resident said his neighbor was nearly burned, when protesters set his car on fire. "A couple of people with bottles of gas, throwing them on the street, and then lighting his car on fire," said a man who only gave his first name, "Nick."

There is another protest planned at 5 p.m. Thursday, at Frank Ogawa Plaza.