A California man has been arrested on suspicion of murder after a driver plowed his car into pedestrians on the popular Venice Beach boardwalk, killing an Italian woman on her honeymoon and injuring 11 other people, police said on Sunday (August 4).

Los Angeles police said Nathan Campbell, 38, was taken into custody late on Saturday after the car involved was found in nearby Santa Monica where they say Campbell lives, and where he later turned himself in.

Witnesses said it appeared the car's driver had been aiming for pedestrians on Saturday while driving down the popular Oceanside walkway at speeds up to 20 miles per hour while people screamed and scrambled to get out of the way.

Security video footage shows the driver parking the car - a dark-coloured Dodge Avenger - across the boardwalk from a cafe and getting out, apparently to look at the crowd. The driver then got back in the car and drove it into the crowd before backing up and apparently steering toward another group of people, the footage showed.

A police spokeswoman said Campbell was arrested on suspicion of murder after questioning, but could not give further details on what charges he faces, a possible motive, or whether he was under the influence of drugs or alcohol at the time. Bail was set at $1 million, police said.

Police identified the deceased pedestrian on Sunday as a 32-year-old Italian woman who had been on her honeymoon, without giving further details.

Presented by Adam Justice