Early morning crash triggers massive backup on Bay Bridge

TREASURE ISLAND, Calif. (KGO) -- A crash caused a traffic nightmare for commuters trying to get into San Francisco early this morning.

The accident was first reported around 5:30 a.m. on westbound lanes of the bridge past Treasure Island.

During the peak of the backup, drivers reported at least an hour to get across the bridge.

All lanes were reopened around 6:30 a.m.

A Sig-alert was issued for the accident, but has since been canceled.

The CHP has not released details on injuries in the crash.