Hundreds of Californians marched through Berkeley for a third night on Monday, blocking a major road and stopping a train.

Protesters opposing grand jury decisions not to indict white police officers over the deaths of black victims Michael Brown and Eric Garner blocked Interstate 80. Another group sat down on train tracks, forcing a passenger train to halt. More than 150 protesters were arrested during the action.

A large group of people began a peaceful march through central Berkeley earlier in the day, first protesting outside the police department — where officers in riot gear blocked them from getting close to the building — then heading to a Bay Area Rapid Transit rail station, prompting authorities to shut the stop.

As the night went on, protesters divided into smaller groups that disrupted traffic and train passengers.

The California Highway Patrol said that some in the crowd had torn down fencing to enter the motorway.

In Ohio, Samaria Rice, the mother of dead black youngster Tamir, demanded that the Cleveland police officer who shot him dead on November 22 be indicted.

The 12-year-old boy was shot while playing with a pellet gun that police claim looked real.

Family lawyer Benjamin Crump insisted that patrol officer Timothy Loehmann should be indicted without a grand jury hearing evidence.

Other lawyers have already filed a federal wrongful death lawsuit on behalf of the bereaved family.