ALAMEDA COUNTY, Calif. (KRON) – Two brush fires burning near the Eastbound 580 near the Altamont Pass have been contained, according to a tweet from the Cal Fire Santa Clara Unit. Firefighters have been at the scene of the twin blazes and forward progress had earlier been halted on both.

One brush fire, east of Grant Line Road, had the left lanes blocked on the freeway. The California Highway Patrol stated via Twitter that a second fire was east of North Flynn Road on the right shoulder.

The fires had earlier resulted in the partial closure of lanes on the Eastbound I-580. All lanes have been reopened although motorists are advised to expect residual delays.

“Please expect delays and drive with caution as emergency personnel work to contain these fires,” CHP stated.

This is a developing story. Check back for updates.