Bay Bridge traffic snarled as authorities impound dozens of dirt bikes involved in bridge takeover

Dozens of dirt bikes and ATVs will be impounded after a group took over the Bay Bridge, causing eastbound traffic to come to a stop on Sunday, authorities said. 

The California Highway Patrol said the group drove across the bridge and entered San Francisco, where they drove around the city streets. They then got back onto the Bay Bridge to head east, but were met by authorities.

Authorities said they stopped all traffic in order to prevent the riders from escaping. The CHP said all the riders abandoned their bikes on the bridge and took off running. 

At least two people were arrested and authorities impounded more than 70 dirt bikes and ATVs.

The Oakland Fire Department said it rescued one person who jumped into the water in an attempt to evade police.

All eastbound lanes were blocked for a time, causing a traffic delay in San Francisco.  

Oakland police say they will release more information on Monday during a news conference. 

In March, San Francisco police seized dozens of bikes when they entered the bridge in an attempt to take over the bridge.