Multiple lanes were temporarily closed on the west and eastbound 210 Freeway through San Dimas ahead of the Tuesday morning commute after a fiery crash involving a semi-truck, according to the California Highway Patrol.
The tractor trailer overturned on the westbound 210 Freeway north of San Dimas Avenue just before 1:45 a.m., then exploded and caught fire, according to CHP's incident log.
It appeared to have lost control ahead of the crash, hitting the center divider at three separate points and took out a freeway sign, the log stated.
Debris was strewn about all lanes of the freeway and some fuel had spilled on the roadway, according to CHP. Caltrans has been called to the scene to clean up and begin repairs.
A SigAlert was issued about 2:20 a.m., and all westbound lanes were completely shut down. Additionally, four lanes of the eastbound roadway were also temporarily closed.
By 4:30 a.m., one lane was open again on the westbound side, while two eastbound lanes were reopened. By 6 a.m., traffic was already snarled and moving at a crawl, video from Sky 5 showed.
The alert was canceled shortly after 7 a.m. and all lanes were reopened, according to CHP.
No major injuries have been reported in connection with the crash, which remained under investigation.