Police trap horde of riders on dirt bikes, ATVs on Bay Bridge following unruly street takeovers

The police activity was the result of a two-month operation targeting a group of riders who police said took over city streets and generally disrupted public safety across the San Francisco Bay Area.

The police activity was the result of a two-month operation targeting a group of riders who police said took over city streets and generally disrupted public safety across the San Francisco Bay Area.

The police activity was the result of a two-month operation targeting a group of riders who police said took over city streets and generally disrupted public safety across the San Francisco Bay Area.