A autobus veered from an L.A. County road onto railroad tracks and overturned Wednesday morning, injuring dozens of passengers, the California Highway Patrol said.
Officers signifier the CHP Antelope Valley portion responded to the scene.
"Preliminary probe suggests that the autobus ... for reasons inactive nether probe ... veered to the right" and disconnected the highway, onto the tracks.
Then the autobus overturned and "came to a halt connected its side," the CHP said.
It cited American Medical Response (AMR) unit arsenic saying immoderate 20-40 passengers sustained injuries ranging from insignificant to major.
It wasn't known whether intoxicant oregon drugs played a relation successful the crash, the CHP added.