westbound

The suspect, who was driving a white SUV eastbound in the westbound lanes of the bridge, was arrested at the scene.

There is no estimate on when the westbound lanes will reopen, and commuters are urged to seek alternative routes.

As of 8 p.m. the westbound lanes were flowing, but the eastbound lanes will probably remain shut through the rest of the night, Sylvia said.

Using traffic modelling - where traffic patterns are simulated - the maximum delays westbound and eastbound are expected to be up to six minutes off-peak and up to 15 minutes during peak times.

The California Highway Patrol began pursuing the vehicle minutes later, traveling westbound on the 10 Freeway at Maple Avenue in Los Angeles, the agency confirmed.