Officials say it will take much of the day to clean up about 400 gallons of liquid asphalt that spilled when a tanker truck overturned on Interstate 210 in California.

All eastbound lanes are closed, westbound traffic is backed up and traffic is snarled on surface streets for miles around.

California Highway Patrol Officer Francisco Villalobos says the truck flipped about 5:40 a.m. Wednesday. Lanes might reopen at 3 p.m. Crews on the scene are also cleaning up goo that seeped into storm drains.

Around noon, more than six hours after the crash, traffic was backed up about two miles on the eastbound 210, and snarled for three miles on the westbound side.

Villalobos says traffic was being rerouted south on Interstate 605 to Interstate 10. Heavy traffic also played havoc with alternate routes such as nearby Interstate 5.

No injuries have been reported.

Fire officials say the truck was carrying 50,000 gallons of liquid asphalt.