It was unclear what caused the crash, but two vehicles were involved.

Galt, CA. – A woman was hospitalized after a traffic collision Thursday morning on Highway 99 in Galt.
According to the California Highway Patrol logs, the crash happened at around 6:13 a.m. on the southbound Highway 99 near Twin Cities Road offramp.
It was unclear what caused the crash, but two vehicles were involved.
A woman was transported to a nearby hospital for treatment of her injuries.
Due to limited available details about the crash.
An investigation is underway.