Big-rig tanker flips, shuts down portions of I-10

A big-rig tanker truck has flipped on a Southern California freeway, forcing first-responders to shut down westbound lanes of Interstate 10 through the morning commuter rush.

A California Highway Patrol dispatcher says the cab and front tank on the double-trailer rig flipped on its side at about 2:40 a.m. in the Fontana area of San Bernardino County, about 50 miles east of downtown Los Angeles.

There was no fire but leaking fuel forced the CHP to shut down westbound lanes.

By 6:45 a.m., one westbound freeway lane was reopened.

The CHP dispatcher says traffic is backed up nearly three miles.

There's no estimate on when the wreckage will be cleared and all lanes reopened.